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Install dlib and face_recognition on a Raspberry Pi

Instructions tested with a Raspberry Pi 2 with an 8GB memory card. Probably also works fine on a Raspberry Pi 3.

Steps

Download the latest Raspbian Jessie Light image. Earlier versions of Raspbian won't work.

Write it to a memory card using Etcher, put the memory card in the RPi and boot it up.

Log in. Default username / password is pi / raspberry.

Set up Wifi (if you are using Wifi) according to the Raspberry Pi instructions.

Run sudo raspi-config and configure the basics:

  • Set up your keyboard layout (It defaults to a British keyboard layout)
  • Change default user password
  • Enable the Raspberry Pi camera (if you have one attached)
  • Configure gpu memory split under 'Advanced'. Set it up '16'.
  • Save changes and reboot.

Install required libraries with these commands:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install build-essential \
    cmake \
    gfortran \
    git \
    wget \
    curl \
    graphicsmagick \
    libgraphicsmagick1-dev \
    libatlas-dev \
    libavcodec-dev \
    libavformat-dev \
    libboost-all-dev \
    libgtk2.0-dev \
    libjpeg-dev \
    liblapack-dev \
    libswscale-dev \
    pkg-config \
    python3-dev \
    python3-numpy \
    python3-pip \
    zip
sudo apt-get clean

Install the picamera python library with array support (if you are using a camera):

sudo apt-get install python3-picamera
sudo pip3 install --upgrade picamera[array]

Temporarily enable a larger swap file size (so the dlib compile won't fail due to limited memory):

sudo nano /etc/dphys-swapfile

< change CONF_SWAPSIZE=100 to CONF_SWAPSIZE=1024 and save / exit nano >

sudo /etc/init.d/dphys-swapfile restart

Download and install dlib v19.6:

mkdir -p dlib
git clone -b 'v19.6' --single-branch https://github.com/davisking/dlib.git dlib/
cd ./dlib
sudo python3 setup.py install --compiler-flags "-mfpu=neon"

Install face_recognition:

sudo pip3 install face_recognition

Revert the swap file size change now that dlib is installed:

sudo nano /etc/dphys-swapfile

< change CONF_SWAPSIZE=1024 to CONF_SWAPSIZE=100 and save / exit nano >

sudo /etc/init.d/dphys-swapfile restart

Download the face recognition code examples:

git clone --single-branch https://github.com/ageitgey/face_recognition.git
cd ./face_recognition/examples
python3 facerec_on_raspberry_pi.py

Totally Optional: If you want a desktop GUI, install PIXEL:

sudo apt-get install --no-install-recommends xserver-xorg xinit raspberrypi-ui-mods
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tilda Apr 22, 2017

Additional note:

If you are installing PIXEL, you should probably up your memory split to 64. 16 will not give much responsiveness.

tilda commented Apr 22, 2017

Additional note:

If you are installing PIXEL, you should probably up your memory split to 64. 16 will not give much responsiveness.

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samiturki May 10, 2017

Hi,
Although I go through all your Rpi manual installation, at the end, when i try python3 facerec_on_raspberry_pi.py, I've got:
mmal: mmal_vc_component_create: failed to create component 'vc.ril.camera' (1:ENOMEM)
mmal: mmal_component_create_core: could not create component 'vc.ril.camera' (1)
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/picamera/camera.py", line 456, in _init_camera
self._camera = mo.MMALCamera()
File "/usr/lib/python3/dist-packages/picamera/mmalobj.py", line 2279, in init
super(MMALCamera, self).init()
File "/usr/lib/python3/dist-packages/picamera/mmalobj.py", line 633, in init
prefix="Failed to create MMAL component %s" % self.component_type)
File "/usr/lib/python3/dist-packages/picamera/exc.py", line 184, in mmal_check
raise PiCameraMMALError(status, prefix)
picamera.exc.PiCameraMMALError: Failed to create MMAL component b'vc.ril.camera': Out of memory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "lib/face_recognition/examples/facerec_on_raspberry_pi.py", line 16, in
camera = picamera.PiCamera()
File "/usr/lib/python3/dist-packages/picamera/camera.py", line 431, in init
self._init_camera(camera_num, stereo_mode, stereo_decimate)
File "/usr/lib/python3/dist-packages/picamera/camera.py", line 460, in _init_camera
"Camera is not enabled. Try running 'sudo raspi-config' "
picamera.exc.PiCameraError: Camera is not enabled. Try running 'sudo raspi-config' and ensure that the camera has been enabled.

Hi,
Although I go through all your Rpi manual installation, at the end, when i try python3 facerec_on_raspberry_pi.py, I've got:
mmal: mmal_vc_component_create: failed to create component 'vc.ril.camera' (1:ENOMEM)
mmal: mmal_component_create_core: could not create component 'vc.ril.camera' (1)
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/picamera/camera.py", line 456, in _init_camera
self._camera = mo.MMALCamera()
File "/usr/lib/python3/dist-packages/picamera/mmalobj.py", line 2279, in init
super(MMALCamera, self).init()
File "/usr/lib/python3/dist-packages/picamera/mmalobj.py", line 633, in init
prefix="Failed to create MMAL component %s" % self.component_type)
File "/usr/lib/python3/dist-packages/picamera/exc.py", line 184, in mmal_check
raise PiCameraMMALError(status, prefix)
picamera.exc.PiCameraMMALError: Failed to create MMAL component b'vc.ril.camera': Out of memory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "lib/face_recognition/examples/facerec_on_raspberry_pi.py", line 16, in
camera = picamera.PiCamera()
File "/usr/lib/python3/dist-packages/picamera/camera.py", line 431, in init
self._init_camera(camera_num, stereo_mode, stereo_decimate)
File "/usr/lib/python3/dist-packages/picamera/camera.py", line 460, in _init_camera
"Camera is not enabled. Try running 'sudo raspi-config' "
picamera.exc.PiCameraError: Camera is not enabled. Try running 'sudo raspi-config' and ensure that the camera has been enabled.

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QuentinCG May 10, 2017

@samiturki The error is quite clear, no?

PiCameraError: Camera is not enabled. Try running 'sudo raspi-config' and ensure that the camera has been enabled.

https://www.raspberrypi.org/learning/getting-started-with-picamera/worksheet/

QuentinCG commented May 10, 2017

@samiturki The error is quite clear, no?

PiCameraError: Camera is not enabled. Try running 'sudo raspi-config' and ensure that the camera has been enabled.

https://www.raspberrypi.org/learning/getting-started-with-picamera/worksheet/

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QuentinCG May 18, 2017

This is very very slow on my RPi3:

  • 20-30sec to initialize the facerec_on_raspberry_pi.py example <-- This is fine for me
  • 5-10sec to check each image <-- This is problematic

Is there a way to check images faster? (it is not real time at all... 1-2sec would be ok but 5-10sec is enormous)

QuentinCG commented May 18, 2017

This is very very slow on my RPi3:

  • 20-30sec to initialize the facerec_on_raspberry_pi.py example <-- This is fine for me
  • 5-10sec to check each image <-- This is problematic

Is there a way to check images faster? (it is not real time at all... 1-2sec would be ok but 5-10sec is enormous)

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jyurek May 19, 2017

I'd love to know if there's a good way to speed this up, too.

jyurek commented May 19, 2017

I'd love to know if there's a good way to speed this up, too.

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vchatterji Jun 9, 2017

@jyurek try http://vmlaker.github.io/mpipe/
Utilizing all 4 cores of the Pi via process pipelines
Plus smaller resolution of 1080p/3

@jyurek try http://vmlaker.github.io/mpipe/
Utilizing all 4 cores of the Pi via process pipelines
Plus smaller resolution of 1080p/3

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dfsdsdwe Jun 22, 2017

recently installed dlib with face recognition following this guide on my raspberry pi3 and when i try and run example programmes i am getting the message:
'File "face-recognition.py", line 50, in <module
import dlib
ImportError: dynamic module does not define init function (initdlib)'
any idea what is causing this? Thanks

recently installed dlib with face recognition following this guide on my raspberry pi3 and when i try and run example programmes i am getting the message:
'File "face-recognition.py", line 50, in <module
import dlib
ImportError: dynamic module does not define init function (initdlib)'
any idea what is causing this? Thanks

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masoudr Jun 26, 2017

Thanks, @vchatterji but can you explain a little more about how to use along with face_recognition examples?

masoudr commented Jun 26, 2017

Thanks, @vchatterji but can you explain a little more about how to use along with face_recognition examples?

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tedm Jul 17, 2017

how would one add biden.jpg (which is already there) as the 'match[1]' in the example?

tedm commented Jul 17, 2017

how would one add biden.jpg (which is already there) as the 'match[1]' in the example?

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roei03jen Jul 23, 2017

Good evening I have a problem when I install dlib v19.4: it always stop at 93% is that an error or Do i really need a really long patience thanks for the reply

Good evening I have a problem when I install dlib v19.4: it always stop at 93% is that an error or Do i really need a really long patience thanks for the reply

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cimzar Jul 26, 2017

is there any way to send an output signal to one of the gpio pins on raspberrypi3 when there is a match in a picture?

cimzar commented Jul 26, 2017

is there any way to send an output signal to one of the gpio pins on raspberrypi3 when there is a match in a picture?

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hcwoo2 Jul 26, 2017

@roei03jen Did you make sure to complete this step (make sure that you saved):

sudo nano /etc/dphys-swapfile

< change CONF_SWAPSIZE=100 to CONF_SWAPSIZE=1024 and save / exit nano >

sudo /etc/init.d/dphys-swapfile restart

hcwoo2 commented Jul 26, 2017

@roei03jen Did you make sure to complete this step (make sure that you saved):

sudo nano /etc/dphys-swapfile

< change CONF_SWAPSIZE=100 to CONF_SWAPSIZE=1024 and save / exit nano >

sudo /etc/init.d/dphys-swapfile restart

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fumufu Aug 1, 2017

It's working fine on a RPi 3. I tested it successfully following the instructions above.
But it's quite slow to output the result on a RPi3, compared with the one in a VM on an Intel i5 PC.
So I am not sure if I can use the picamera to trace the face real-timely.

fumufu commented Aug 1, 2017

It's working fine on a RPi 3. I tested it successfully following the instructions above.
But it's quite slow to output the result on a RPi3, compared with the one in a VM on an Intel i5 PC.
So I am not sure if I can use the picamera to trace the face real-timely.

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CosminNechifor Aug 16, 2017

When I try to install face_recognition using:

sudo pip3 install face_recognition

I get this:

Exception:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/urllib3/response.py", line 186, in read
data = self._fp.read(amt)
File "/usr/lib/python3.4/http/client.py", line 500, in read
return super(HTTPResponse, self).read(amt)
File "/usr/lib/python3.4/http/client.py", line 539, in readinto
n = self.fp.readinto(b)
File "/usr/lib/python3.4/socket.py", line 371, in readinto
return self._sock.recv_into(b)
File "/usr/lib/python3.4/ssl.py", line 745, in recv_into
return self.read(nbytes, buffer)
File "/usr/lib/python3.4/ssl.py", line 617, in read
v = self._sslobj.read(len, buffer)
socket.timeout: The read operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 122, in main
status = self.run(options, args)
File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 290, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "/usr/lib/python3/dist-packages/pip/req.py", line 1198, in prepare_files
do_download,
File "/usr/lib/python3/dist-packages/pip/req.py", line 1376, in unpack_url
self.session,
File "/usr/lib/python3/dist-packages/pip/download.py", line 572, in unpack_http_url
download_hash = _download_url(resp, link, temp_location)
File "/usr/lib/python3/dist-packages/pip/download.py", line 433, in _download_url
for chunk in resp_read(4096):
File "/usr/lib/python3/dist-packages/pip/download.py", line 421, in resp_read
chunk_size, decode_content=False):
File "/usr/lib/python3/dist-packages/urllib3/response.py", line 256, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "/usr/lib/python3/dist-packages/urllib3/response.py", line 201, in read
raise ReadTimeoutError(self._pool, None, 'Read timed out.')
urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='pypi.python.org', port=443): Read timed out.

Storing debug log for failure in /home/pi/.pip/pip.log

Can someone give me a hint?

UPDATE: it worked after I installed once again dlib

CosminNechifor commented Aug 16, 2017

When I try to install face_recognition using:

sudo pip3 install face_recognition

I get this:

Exception:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/urllib3/response.py", line 186, in read
data = self._fp.read(amt)
File "/usr/lib/python3.4/http/client.py", line 500, in read
return super(HTTPResponse, self).read(amt)
File "/usr/lib/python3.4/http/client.py", line 539, in readinto
n = self.fp.readinto(b)
File "/usr/lib/python3.4/socket.py", line 371, in readinto
return self._sock.recv_into(b)
File "/usr/lib/python3.4/ssl.py", line 745, in recv_into
return self.read(nbytes, buffer)
File "/usr/lib/python3.4/ssl.py", line 617, in read
v = self._sslobj.read(len, buffer)
socket.timeout: The read operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 122, in main
status = self.run(options, args)
File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 290, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "/usr/lib/python3/dist-packages/pip/req.py", line 1198, in prepare_files
do_download,
File "/usr/lib/python3/dist-packages/pip/req.py", line 1376, in unpack_url
self.session,
File "/usr/lib/python3/dist-packages/pip/download.py", line 572, in unpack_http_url
download_hash = _download_url(resp, link, temp_location)
File "/usr/lib/python3/dist-packages/pip/download.py", line 433, in _download_url
for chunk in resp_read(4096):
File "/usr/lib/python3/dist-packages/pip/download.py", line 421, in resp_read
chunk_size, decode_content=False):
File "/usr/lib/python3/dist-packages/urllib3/response.py", line 256, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "/usr/lib/python3/dist-packages/urllib3/response.py", line 201, in read
raise ReadTimeoutError(self._pool, None, 'Read timed out.')
urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='pypi.python.org', port=443): Read timed out.

Storing debug log for failure in /home/pi/.pip/pip.log

Can someone give me a hint?

UPDATE: it worked after I installed once again dlib

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HarveyBrezinaConniffe Aug 23, 2017

When I try running sudo python3 setup.py install --compiler-flags "-mpfu=neon", I get this error: error: option --compiler-flags not recognized, I also find no mention of this option in the setup.py file?

When I try running sudo python3 setup.py install --compiler-flags "-mpfu=neon", I get this error: error: option --compiler-flags not recognized, I also find no mention of this option in the setup.py file?

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donaldjansen Aug 24, 2017

has anyone got this to work on windows ?

has anyone got this to work on windows ?

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mattcurrycom Aug 26, 2017

When I try running sudo python3 setup.py install --compiler-flags "-mpfu=neon", I get this error: error: option --compiler-flags not recognized, I also find no mention of this option in the setup.py file?

When I try running sudo python3 setup.py install --compiler-flags "-mpfu=neon", I get this error: error: option --compiler-flags not recognized, I also find no mention of this option in the setup.py file?

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CosminNechifor Aug 26, 2017

Try installing dlib using:

sudo pip3 install dlib

It took me ~20 min, because I have a bad internet connection. And the face_recognition lib works fine.

CosminNechifor commented Aug 26, 2017

Try installing dlib using:

sudo pip3 install dlib

It took me ~20 min, because I have a bad internet connection. And the face_recognition lib works fine.

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jatinkrmalik Aug 30, 2017

Can anyone share some benchmarks like what FPS are they able to achieve with this? And on what resolution?

Can anyone share some benchmarks like what FPS are they able to achieve with this? And on what resolution?

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skerit Sep 7, 2017

The "mpfu" error is because it's a typo. It should be -mfpu=neon. F before p.

It'll compile without any problems then, but I haven't really noticed any performance boost.

skerit commented Sep 7, 2017

The "mpfu" error is because it's a typo. It should be -mfpu=neon. F before p.

It'll compile without any problems then, but I haven't really noticed any performance boost.

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MedKarim-BALI Sep 13, 2017

i try with mfpu=neon and it works
error: unrecognized command line option ‘-mpfu=neon’;
did you mean
==> ‘-mfpu=neon’?

i try with mfpu=neon and it works
error: unrecognized command line option ‘-mpfu=neon’;
did you mean
==> ‘-mfpu=neon’?

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ss6054 Oct 14, 2017

Can it run at Raspberry Pi model B+?

ss6054 commented Oct 14, 2017

Can it run at Raspberry Pi model B+?

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noblekoshy Oct 19, 2017

Would dlib benefit from VFPV3 optimization in addition to NEON?

noblekoshy commented Oct 19, 2017

Would dlib benefit from VFPV3 optimization in addition to NEON?

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mecastro Oct 24, 2017

I'm having a problem installing the gui on raspberry pi pls help asap

I'm having a problem installing the gui on raspberry pi pls help asap

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HsalF-esereveR Nov 9, 2017

Wondering if it can work with an USB camera ?

Wondering if it can work with an USB camera ?

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osmadja Nov 9, 2017

Yes, it is working with usb Camera on the PI 3. I currently use a logitech c920 and it is working. But even reducing image resolution to 320x240, the performance is bad : the face detection is 3s / frame and 1.2 to compute encodings. So it is more than 4s per frame. Anyone managed better performance ? using the PI 3 gpu ?

osmadja commented Nov 9, 2017

Yes, it is working with usb Camera on the PI 3. I currently use a logitech c920 and it is working. But even reducing image resolution to 320x240, the performance is bad : the face detection is 3s / frame and 1.2 to compute encodings. So it is more than 4s per frame. Anyone managed better performance ? using the PI 3 gpu ?

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HsalF-esereveR Nov 13, 2017

@osmadja. 👍

cd ./face_recognition/examples

python3 facerec_from_webcam_faster.py

I was running this code with a USB webcam and got an error.

So I want to do a real-time face recognition (As shown in this link -> https://cloud.githubusercontent.com/assets/896692/24430398/36f0e3f0-13cb-11e7-8258-4d0c9ce1e419.gif ) with a USB webcam (Logitech QuickCam Pro 9000) that supports 1600x1200 resolution

Are you using it for real-time the same way like I do ?

@osmadja. 👍

cd ./face_recognition/examples

python3 facerec_from_webcam_faster.py

I was running this code with a USB webcam and got an error.

So I want to do a real-time face recognition (As shown in this link -> https://cloud.githubusercontent.com/assets/896692/24430398/36f0e3f0-13cb-11e7-8258-4d0c9ce1e419.gif ) with a USB webcam (Logitech QuickCam Pro 9000) that supports 1600x1200 resolution

Are you using it for real-time the same way like I do ?

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cmsfw-github Dec 2, 2017

Hi! When I try to run this command: sudo python3 setup.py install --compiler-flags '-mpfu=neon' on raspberrypi 3b,I get errors as follows:

Checking .pth file support in /usr/local/lib/python3.4/dist-packages/
/usr/bin/python3 -E -c pass
TEST PASSED: /usr/local/lib/python3.4/dist-packages/ appears to support .pth files
running bdist_egg
running build
Detected Python architecture: 32bit
Detected platform: linux
Removing build directory /usr/local/dlib/./tools/python/build
Configuring cmake ...
-- The C compiler identification is GNU 4.9.2
-- The CXX compiler identification is unknown
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- broken
CMake Error at /usr/share/cmake-3.0/Modules/CMakeTestCXXCompiler.cmake:54 (message):
The C++ compiler "/usr/bin/c++" is not able to compile a simple test
program.
It fails with the following output:
Change Dir: /usr/local/dlib/tools/python/build/CMakeFiles/CMakeTmp
Run Build Command:"/usr/bin/make" "cmTryCompileExec3550236372/fast"
/usr/bin/make -f CMakeFiles/cmTryCompileExec3550236372.dir/build.make
CMakeFiles/cmTryCompileExec3550236372.dir/build
make[1]: Entering directory
'/usr/local/dlib/tools/python/build/CMakeFiles/CMakeTmp'
/usr/bin/cmake -E cmake_progress_report
/usr/local/dlib/tools/python/build/CMakeFiles/CMakeTmp/CMakeFiles 1
Building CXX object
CMakeFiles/cmTryCompileExec3550236372.dir/testCXXCompiler.cxx.o
/usr/bin/c++ -mpfu=neon -o
CMakeFiles/cmTryCompileExec3550236372.dir/testCXXCompiler.cxx.o -c
/usr/local/dlib/tools/python/build/CMakeFiles/CMakeTmp/testCXXCompiler.cxx
c++: error: unrecognized command line option ‘-mpfu=neon’
CMakeFiles/cmTryCompileExec3550236372.dir/build.make:57: recipe for target
'CMakeFiles/cmTryCompileExec3550236372.dir/testCXXCompiler.cxx.o' failed
make[1]: ***
[CMakeFiles/cmTryCompileExec3550236372.dir/testCXXCompiler.cxx.o] Error 1
make[1]: Leaving directory
'/usr/local/dlib/tools/python/build/CMakeFiles/CMakeTmp'
Makefile:118: recipe for target 'cmTryCompileExec3550236372/fast' failed
make: *** [cmTryCompileExec3550236372/fast] Error 2
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
-- Configuring incomplete, errors occurred!
See also "/usr/local/dlib/tools/python/build/CMakeFiles/CMakeOutput.log".
See also "/usr/local/dlib/tools/python/build/CMakeFiles/CMakeError.log".
error: cmake configuration failed!

What should I do to correct these errors? Thank you for your reply!****

Hi! When I try to run this command: sudo python3 setup.py install --compiler-flags '-mpfu=neon' on raspberrypi 3b,I get errors as follows:

Checking .pth file support in /usr/local/lib/python3.4/dist-packages/
/usr/bin/python3 -E -c pass
TEST PASSED: /usr/local/lib/python3.4/dist-packages/ appears to support .pth files
running bdist_egg
running build
Detected Python architecture: 32bit
Detected platform: linux
Removing build directory /usr/local/dlib/./tools/python/build
Configuring cmake ...
-- The C compiler identification is GNU 4.9.2
-- The CXX compiler identification is unknown
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- broken
CMake Error at /usr/share/cmake-3.0/Modules/CMakeTestCXXCompiler.cmake:54 (message):
The C++ compiler "/usr/bin/c++" is not able to compile a simple test
program.
It fails with the following output:
Change Dir: /usr/local/dlib/tools/python/build/CMakeFiles/CMakeTmp
Run Build Command:"/usr/bin/make" "cmTryCompileExec3550236372/fast"
/usr/bin/make -f CMakeFiles/cmTryCompileExec3550236372.dir/build.make
CMakeFiles/cmTryCompileExec3550236372.dir/build
make[1]: Entering directory
'/usr/local/dlib/tools/python/build/CMakeFiles/CMakeTmp'
/usr/bin/cmake -E cmake_progress_report
/usr/local/dlib/tools/python/build/CMakeFiles/CMakeTmp/CMakeFiles 1
Building CXX object
CMakeFiles/cmTryCompileExec3550236372.dir/testCXXCompiler.cxx.o
/usr/bin/c++ -mpfu=neon -o
CMakeFiles/cmTryCompileExec3550236372.dir/testCXXCompiler.cxx.o -c
/usr/local/dlib/tools/python/build/CMakeFiles/CMakeTmp/testCXXCompiler.cxx
c++: error: unrecognized command line option ‘-mpfu=neon’
CMakeFiles/cmTryCompileExec3550236372.dir/build.make:57: recipe for target
'CMakeFiles/cmTryCompileExec3550236372.dir/testCXXCompiler.cxx.o' failed
make[1]: ***
[CMakeFiles/cmTryCompileExec3550236372.dir/testCXXCompiler.cxx.o] Error 1
make[1]: Leaving directory
'/usr/local/dlib/tools/python/build/CMakeFiles/CMakeTmp'
Makefile:118: recipe for target 'cmTryCompileExec3550236372/fast' failed
make: *** [cmTryCompileExec3550236372/fast] Error 2
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
-- Configuring incomplete, errors occurred!
See also "/usr/local/dlib/tools/python/build/CMakeFiles/CMakeOutput.log".
See also "/usr/local/dlib/tools/python/build/CMakeFiles/CMakeError.log".
error: cmake configuration failed!

What should I do to correct these errors? Thank you for your reply!****

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myorulmaz Dec 2, 2017

RuntimeError: Error deserializing object of type short

how can i fix this error, can you help me

RuntimeError: Error deserializing object of type short

how can i fix this error, can you help me

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Chronoculars Dec 4, 2017

When I run ¨sudo pip3 install face-recognition¨, I recieve this rather long error:

Exception:
Traceback (most recent call last):
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/contrib/pyopenssl.py", line 417, in wrap_socket
cnx.do_handshake()
File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 1426, in do_handshake
self._raise_ssl_error(self._ssl, result)
File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 1149, in _raise_ssl_error
raise WantReadError()
OpenSSL.SSL.WantReadError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 350, in _make_request
self._validate_conn(conn)
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 837, in validate_conn
conn.connect()
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connection.py", line 323, in connect
ssl_context=context)
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/util/ssl
.py", line 324, in ssl_wrap_socket
return context.wrap_socket(sock, server_hostname=server_hostname)
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/contrib/pyopenssl.py", line 421, in wrap_socket
raise timeout('select timed out')
socket.timeout: select timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 594, in urlopen
chunked=chunked)
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 353, in _make_request
self._raise_timeout(err=e, url=url, timeout_value=conn.timeout)
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 313, in _raise_timeout
raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
requests.packages.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='www.piwheels.hostedpi.com', port=443): Read timed out. (read timeout=15)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 215, in main
status = self.run(options, args)
File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 353, in run
wb.build(autobuilding=True)
File "/usr/lib/python3/dist-packages/pip/wheel.py", line 749, in build
self.requirement_set.prepare_files(self.finder)
File "/usr/lib/python3/dist-packages/pip/req/req_set.py", line 380, in prepare_files
ignore_dependencies=self.ignore_dependencies))
File "/usr/lib/python3/dist-packages/pip/req/req_set.py", line 554, in _prepare_file
require_hashes
File "/usr/lib/python3/dist-packages/pip/req/req_install.py", line 278, in populate_link
self.link = finder.find_requirement(self, upgrade)
File "/usr/lib/python3/dist-packages/pip/index.py", line 465, in find_requirement
all_candidates = self.find_all_candidates(req.name)
File "/usr/lib/python3/dist-packages/pip/index.py", line 423, in find_all_candidates
for page in self._get_pages(url_locations, project_name):
File "/usr/lib/python3/dist-packages/pip/index.py", line 568, in _get_pages
page = self._get_page(location)
File "/usr/lib/python3/dist-packages/pip/index.py", line 683, in _get_page
return HTMLPage.get_page(link, session=self.session)
File "/usr/lib/python3/dist-packages/pip/index.py", line 792, in get_page
"Cache-Control": "max-age=600",
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 501, in get
return self.request('GET', url, **kwargs)
File "/usr/lib/python3/dist-packages/pip/download.py", line 386, in request
return super(PipSession, self).request(method, url, *args, **kwargs)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 488, in request
resp = self.send(prep, **send_kwargs)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 609, in send
r = adapter.send(request, **kwargs)
File "/usr/share/python-wheels/CacheControl-0.11.7-py2.py3-none-any.whl/cachecontrol/adapter.py", line 47, in send
resp = super(CacheControlAdapter, self).send(request, **kw)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/adapters.py", line 423, in send
timeout=timeout
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 643, in urlopen
_stacktrace=sys.exc_info()[2])
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/util/retry.py", line 315, in increment
total -= 1
TypeError: unsupported operand type(s) for -=: 'Retry' and 'int'

Does anyone know how to fix this?
Thanks!

When I run ¨sudo pip3 install face-recognition¨, I recieve this rather long error:

Exception:
Traceback (most recent call last):
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/contrib/pyopenssl.py", line 417, in wrap_socket
cnx.do_handshake()
File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 1426, in do_handshake
self._raise_ssl_error(self._ssl, result)
File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 1149, in _raise_ssl_error
raise WantReadError()
OpenSSL.SSL.WantReadError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 350, in _make_request
self._validate_conn(conn)
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 837, in validate_conn
conn.connect()
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connection.py", line 323, in connect
ssl_context=context)
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/util/ssl
.py", line 324, in ssl_wrap_socket
return context.wrap_socket(sock, server_hostname=server_hostname)
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/contrib/pyopenssl.py", line 421, in wrap_socket
raise timeout('select timed out')
socket.timeout: select timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 594, in urlopen
chunked=chunked)
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 353, in _make_request
self._raise_timeout(err=e, url=url, timeout_value=conn.timeout)
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 313, in _raise_timeout
raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
requests.packages.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='www.piwheels.hostedpi.com', port=443): Read timed out. (read timeout=15)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 215, in main
status = self.run(options, args)
File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 353, in run
wb.build(autobuilding=True)
File "/usr/lib/python3/dist-packages/pip/wheel.py", line 749, in build
self.requirement_set.prepare_files(self.finder)
File "/usr/lib/python3/dist-packages/pip/req/req_set.py", line 380, in prepare_files
ignore_dependencies=self.ignore_dependencies))
File "/usr/lib/python3/dist-packages/pip/req/req_set.py", line 554, in _prepare_file
require_hashes
File "/usr/lib/python3/dist-packages/pip/req/req_install.py", line 278, in populate_link
self.link = finder.find_requirement(self, upgrade)
File "/usr/lib/python3/dist-packages/pip/index.py", line 465, in find_requirement
all_candidates = self.find_all_candidates(req.name)
File "/usr/lib/python3/dist-packages/pip/index.py", line 423, in find_all_candidates
for page in self._get_pages(url_locations, project_name):
File "/usr/lib/python3/dist-packages/pip/index.py", line 568, in _get_pages
page = self._get_page(location)
File "/usr/lib/python3/dist-packages/pip/index.py", line 683, in _get_page
return HTMLPage.get_page(link, session=self.session)
File "/usr/lib/python3/dist-packages/pip/index.py", line 792, in get_page
"Cache-Control": "max-age=600",
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 501, in get
return self.request('GET', url, **kwargs)
File "/usr/lib/python3/dist-packages/pip/download.py", line 386, in request
return super(PipSession, self).request(method, url, *args, **kwargs)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 488, in request
resp = self.send(prep, **send_kwargs)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 609, in send
r = adapter.send(request, **kwargs)
File "/usr/share/python-wheels/CacheControl-0.11.7-py2.py3-none-any.whl/cachecontrol/adapter.py", line 47, in send
resp = super(CacheControlAdapter, self).send(request, **kw)
File "/usr/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/adapters.py", line 423, in send
timeout=timeout
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 643, in urlopen
_stacktrace=sys.exc_info()[2])
File "/usr/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/util/retry.py", line 315, in increment
total -= 1
TypeError: unsupported operand type(s) for -=: 'Retry' and 'int'

Does anyone know how to fix this?
Thanks!

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melvudin Dec 9, 2017

@cmsfw-github
Use -mfpu instead of -mpfu

melvudin commented Dec 9, 2017

@cmsfw-github
Use -mfpu instead of -mpfu

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cmsfw-github Dec 12, 2017

@melvudin
Thank you! I‘ve solved this problem successfully!

@melvudin
Thank you! I‘ve solved this problem successfully!

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ageitgey Dec 13, 2017

@melvudin doh typo, thanks!

Owner

ageitgey commented Dec 13, 2017

@melvudin doh typo, thanks!

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Alex-Ladron Dec 13, 2017

After installing and running on "(cv)" to access the webcam, I keep getting the following error:

File "facerec_from_webcam.py", line 15, in
obama_image = face_recognition.load_image_file("obama.jpg")
AttributeError: module 'face_recognition' has no attribute 'load_image_file'

Appreciate any help! Thank you!

After installing and running on "(cv)" to access the webcam, I keep getting the following error:

File "facerec_from_webcam.py", line 15, in
obama_image = face_recognition.load_image_file("obama.jpg")
AttributeError: module 'face_recognition' has no attribute 'load_image_file'

Appreciate any help! Thank you!

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kkeyan Jan 14, 2018

ImportError: No module named face_recognition on raspberry pi

kkeyan commented Jan 14, 2018

ImportError: No module named face_recognition on raspberry pi

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vrushang25 Jan 18, 2018

how to install it for python 2.7 in raspberry pi 3-B?

how to install it for python 2.7 in raspberry pi 3-B?

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liguilini Jan 20, 2018

Hi! When I try to run python3 ./face_recognition/examples/facerec_on_raspberry_pi.py I get exception occurred. how to fix it?
Traceback (most recent call last):
File "/usr/local/lib/python3.5/dist-packages/numpy/core/init.py", line 16, in
from . import multiarray
ImportError: libf77blas.so.3: cannot open shared object file: No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "./Documents/facerecognition/face_recognition/examples/facerec_on_raspberry_pi.py", line 9, in
import face_recognition
File "/usr/local/lib/python3.5/dist-packages/face_recognition/init.py", line 7, in
from .api import load_image_file, face_locations, batch_face_locations, face_landmarks, face_encodings, compare_faces, face_distance
File "/usr/local/lib/python3.5/dist-packages/face_recognition/api.py", line 3, in
import scipy.misc
File "/usr/local/lib/python3.5/dist-packages/scipy/init.py", line 61, in
from numpy import show_config as show_numpy_config
File "/usr/local/lib/python3.5/dist-packages/numpy/init.py", line 142, in
from . import add_newdocs
File "/usr/local/lib/python3.5/dist-packages/numpy/add_newdocs.py", line 13, in
from numpy.lib import add_newdoc
File "/usr/local/lib/python3.5/dist-packages/numpy/lib/init.py", line 8, in
from .type_check import *
File "/usr/local/lib/python3.5/dist-packages/numpy/lib/type_check.py", line 11, in
import numpy.core.numeric as _nx
File "/usr/local/lib/python3.5/dist-packages/numpy/core/init.py", line 26, in
raise ImportError(msg)
ImportError:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try git clean -xdf (removes all
files not under version control). Otherwise reinstall numpy.

Original error was: libf77blas.so.3: cannot open shared object file: No such file or directory

liguilini commented Jan 20, 2018

Hi! When I try to run python3 ./face_recognition/examples/facerec_on_raspberry_pi.py I get exception occurred. how to fix it?
Traceback (most recent call last):
File "/usr/local/lib/python3.5/dist-packages/numpy/core/init.py", line 16, in
from . import multiarray
ImportError: libf77blas.so.3: cannot open shared object file: No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "./Documents/facerecognition/face_recognition/examples/facerec_on_raspberry_pi.py", line 9, in
import face_recognition
File "/usr/local/lib/python3.5/dist-packages/face_recognition/init.py", line 7, in
from .api import load_image_file, face_locations, batch_face_locations, face_landmarks, face_encodings, compare_faces, face_distance
File "/usr/local/lib/python3.5/dist-packages/face_recognition/api.py", line 3, in
import scipy.misc
File "/usr/local/lib/python3.5/dist-packages/scipy/init.py", line 61, in
from numpy import show_config as show_numpy_config
File "/usr/local/lib/python3.5/dist-packages/numpy/init.py", line 142, in
from . import add_newdocs
File "/usr/local/lib/python3.5/dist-packages/numpy/add_newdocs.py", line 13, in
from numpy.lib import add_newdoc
File "/usr/local/lib/python3.5/dist-packages/numpy/lib/init.py", line 8, in
from .type_check import *
File "/usr/local/lib/python3.5/dist-packages/numpy/lib/type_check.py", line 11, in
import numpy.core.numeric as _nx
File "/usr/local/lib/python3.5/dist-packages/numpy/core/init.py", line 26, in
raise ImportError(msg)
ImportError:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try git clean -xdf (removes all
files not under version control). Otherwise reinstall numpy.

Original error was: libf77blas.so.3: cannot open shared object file: No such file or directory

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EnglishAlex Jan 21, 2018

I ran sudo apt-get clean and git clean -xdf it didn't help.
I searched for errors related to libf77blas.so.3 - found one reference to installing another library.. I ran sudo apt-get install libatlas-base-dev and this fixed the "Original error was: libf77blas.so.3: cannot open shared object file: No such file or directory" error.

I ran sudo apt-get clean and git clean -xdf it didn't help.
I searched for errors related to libf77blas.so.3 - found one reference to installing another library.. I ran sudo apt-get install libatlas-base-dev and this fixed the "Original error was: libf77blas.so.3: cannot open shared object file: No such file or directory" error.

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liguilini Jan 22, 2018

@EnglishAlex Thank you.I run sudo apt-get install libatlas but it didn't help.When i run sudo apt-get install libatlas-base-dev.I‘ve solved this problem successfully.

@EnglishAlex Thank you.I run sudo apt-get install libatlas but it didn't help.When i run sudo apt-get install libatlas-base-dev.I‘ve solved this problem successfully.

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mthd98 Feb 4, 2018

hi i need help when i import face_recognition it give me this error
Traceback (most recent call last):
File "<pyshell#0>", line 1, in
import face_recognition
File "/usr/local/lib/python3.5/dist-packages/face_recognition/init.py", line 7, in
from .api import load_image_file, face_locations, batch_face_locations, face_landmarks, face_encodings, compare_faces, face_distance
File "/usr/local/lib/python3.5/dist-packages/face_recognition/api.py", line 4, in
import dlib
ImportError: libatlas.so.3: cannot open shared object file: No such file or directory

mthd98 commented Feb 4, 2018

hi i need help when i import face_recognition it give me this error
Traceback (most recent call last):
File "<pyshell#0>", line 1, in
import face_recognition
File "/usr/local/lib/python3.5/dist-packages/face_recognition/init.py", line 7, in
from .api import load_image_file, face_locations, batch_face_locations, face_landmarks, face_encodings, compare_faces, face_distance
File "/usr/local/lib/python3.5/dist-packages/face_recognition/api.py", line 4, in
import dlib
ImportError: libatlas.so.3: cannot open shared object file: No such file or directory

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superleggera24 Feb 13, 2018

After 24 hours following this tutorial I finally got it working. I got errors from numpy, int64 errors and so on. What did it for me, was this:

  1. After downloading a recent raspbian img, instantly updating python to 3.6
  2. From then on every command with python3 in it, you should use python3.6 instead
  3. Then there is dlib. This tutorial uses 19.6 in the example codes, but the setup.py requirements say >= 19.7. This means your freshly installed dlib is instantly removed. Yes, I know. It took very long for me too. The first command you should change 19.6 to 19.9.
  4. Also very important: dont use pip3, but use pip3.6

I hope this helped any of you, I know it sure did help me.

superleggera24 commented Feb 13, 2018

After 24 hours following this tutorial I finally got it working. I got errors from numpy, int64 errors and so on. What did it for me, was this:

  1. After downloading a recent raspbian img, instantly updating python to 3.6
  2. From then on every command with python3 in it, you should use python3.6 instead
  3. Then there is dlib. This tutorial uses 19.6 in the example codes, but the setup.py requirements say >= 19.7. This means your freshly installed dlib is instantly removed. Yes, I know. It took very long for me too. The first command you should change 19.6 to 19.9.
  4. Also very important: dont use pip3, but use pip3.6

I hope this helped any of you, I know it sure did help me.

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sylveryte Feb 19, 2018

@superleggera24
Thank you, It helped, I sucessfully installed face_recognition on raspbian lite. With "python3.6 -m pip ...". I installed both dlib and face_recognition with pip. It takes a lot of time around 2-3 hours for all modules[dlib,scipy,numpy,pillow,click,face_recognition.

sylveryte commented Feb 19, 2018

@superleggera24
Thank you, It helped, I sucessfully installed face_recognition on raspbian lite. With "python3.6 -m pip ...". I installed both dlib and face_recognition with pip. It takes a lot of time around 2-3 hours for all modules[dlib,scipy,numpy,pillow,click,face_recognition.

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wljgithub Mar 5, 2018

thanks,i occur the same error :
ImportError:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try git clean -xdf (removes all
files not under version control). Otherwise reinstall numpy.
fortunately,I fix it after i ran " sudo apt-get install libatlas-base-dev "
thank you very much,guys

thanks,i occur the same error :
ImportError:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try git clean -xdf (removes all
files not under version control). Otherwise reinstall numpy.
fortunately,I fix it after i ran " sudo apt-get install libatlas-base-dev "
thank you very much,guys

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IarveJ Mar 8, 2018

So Im trying to install this on a relatively new board the PYNQ board by Xilinx. Using these same instructions it is possible, however the install takes a very long time to :
Running setup.py install for dlib ...

Is this normal and should be expected?

IarveJ commented Mar 8, 2018

So Im trying to install this on a relatively new board the PYNQ board by Xilinx. Using these same instructions it is possible, however the install takes a very long time to :
Running setup.py install for dlib ...

Is this normal and should be expected?

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mostafazaghlol Mar 12, 2018

I face a problem with this Line

``sudopython3 setup.py install --compiler-flags "-mfpu=neon"

It take from 4 to 6 hour to finish and when it reach 98 % it stopped with error ? is there any second choose ?

I face a problem with this Line

``sudopython3 setup.py install --compiler-flags "-mfpu=neon"

It take from 4 to 6 hour to finish and when it reach 98 % it stopped with error ? is there any second choose ?

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diegozaks Mar 19, 2018

Been about 16 hours, on 96% on a RPi Zero W... Waiting, this is my 5th attempt.
Had to use
< change CONF_SWAPSIZE=100 to CONF_SWAPSIZE=512 and save / exit nano >

since 1024 would just error "ran out of memory" at around 40%. Probably because the Zero has only 512mb of ram.

Will update if it works this time. I've already ordered a Pi3 B+, looking forward to that one if this does not work.

Update: build failed at 96%, ran out of memory.

Update 2: completed build
Tried again, make sure GPU memory split is set to 16, not 64"
Got it working, has to reinstall numpy afterward since I was getting this error.
libf77blas.so.3: cannot open shared object file: No such file or directory

It now works. The Pi Zero is as slow as advertised. The "find_faces_in_picture.py" takes about 60 seconds. Looking at ways to optimize while my Pi 3 B+ arrives.

diegozaks commented Mar 19, 2018

Been about 16 hours, on 96% on a RPi Zero W... Waiting, this is my 5th attempt.
Had to use
< change CONF_SWAPSIZE=100 to CONF_SWAPSIZE=512 and save / exit nano >

since 1024 would just error "ran out of memory" at around 40%. Probably because the Zero has only 512mb of ram.

Will update if it works this time. I've already ordered a Pi3 B+, looking forward to that one if this does not work.

Update: build failed at 96%, ran out of memory.

Update 2: completed build
Tried again, make sure GPU memory split is set to 16, not 64"
Got it working, has to reinstall numpy afterward since I was getting this error.
libf77blas.so.3: cannot open shared object file: No such file or directory

It now works. The Pi Zero is as slow as advertised. The "find_faces_in_picture.py" takes about 60 seconds. Looking at ways to optimize while my Pi 3 B+ arrives.

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vinitvilla Mar 21, 2018

I face some problems when doing this operation: (python3 facerec_on_raspberry_pi.py)

Traceback (most recent call last):
File "/usr/local/lib/python3.5/dist-packages/numpy/core/init.py", line 16, in
from . import multiarray
ImportError: libf77blas.so.3: cannot open shared object file: No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "facerec_on_raspberry_pi.py", line 9, in
import face_recognition
File "/usr/local/lib/python3.5/dist-packages/face_recognition/init.py", line 7, in
from .api import load_image_file, face_locations, batch_face_locations, face_landmarks, face_encodings, compare_faces, face_distance
File "/usr/local/lib/python3.5/dist-packages/face_recognition/api.py", line 3, in
import scipy.misc
File "/usr/local/lib/python3.5/dist-packages/scipy/init.py", line 61, in
from numpy import show_config as show_numpy_config
File "/usr/local/lib/python3.5/dist-packages/numpy/init.py", line 142, in
from . import add_newdocs
File "/usr/local/lib/python3.5/dist-packages/numpy/add_newdocs.py", line 13, in
from numpy.lib import add_newdoc
File "/usr/local/lib/python3.5/dist-packages/numpy/lib/init.py", line 8, in
from .type_check import *
File "/usr/local/lib/python3.5/dist-packages/numpy/lib/type_check.py", line 11, in
import numpy.core.numeric as _nx
File "/usr/local/lib/python3.5/dist-packages/numpy/core/init.py", line 26, in
raise ImportError(msg)
ImportError:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try git clean -xdf (removes all
files not under version control). Otherwise reinstall numpy.

Original error was: libf77blas.so.3: cannot open shared object file: No such file or directory

KINDLY HELP

I face some problems when doing this operation: (python3 facerec_on_raspberry_pi.py)

Traceback (most recent call last):
File "/usr/local/lib/python3.5/dist-packages/numpy/core/init.py", line 16, in
from . import multiarray
ImportError: libf77blas.so.3: cannot open shared object file: No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "facerec_on_raspberry_pi.py", line 9, in
import face_recognition
File "/usr/local/lib/python3.5/dist-packages/face_recognition/init.py", line 7, in
from .api import load_image_file, face_locations, batch_face_locations, face_landmarks, face_encodings, compare_faces, face_distance
File "/usr/local/lib/python3.5/dist-packages/face_recognition/api.py", line 3, in
import scipy.misc
File "/usr/local/lib/python3.5/dist-packages/scipy/init.py", line 61, in
from numpy import show_config as show_numpy_config
File "/usr/local/lib/python3.5/dist-packages/numpy/init.py", line 142, in
from . import add_newdocs
File "/usr/local/lib/python3.5/dist-packages/numpy/add_newdocs.py", line 13, in
from numpy.lib import add_newdoc
File "/usr/local/lib/python3.5/dist-packages/numpy/lib/init.py", line 8, in
from .type_check import *
File "/usr/local/lib/python3.5/dist-packages/numpy/lib/type_check.py", line 11, in
import numpy.core.numeric as _nx
File "/usr/local/lib/python3.5/dist-packages/numpy/core/init.py", line 26, in
raise ImportError(msg)
ImportError:
Importing the multiarray numpy extension module failed. Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try git clean -xdf (removes all
files not under version control). Otherwise reinstall numpy.

Original error was: libf77blas.so.3: cannot open shared object file: No such file or directory

KINDLY HELP

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neutralvibes Apr 20, 2018

For those looking to improve performance you need to install OpenBlas before compiling dlib. It does make things a bit faster if you do.

To install OpenBLAS

sudo apt-get install libopenblas-dev liblapack-dev libatlas-base-dev

Important

As I found out painfully, OpenBLAS does help, but it will chew up your cores and cause days of head banging if you don't set the following environment variables in your shell before running any recognition.

export OPENBLAS_NUM_THREADS=1 
export OPENBLAS_MAIN_FREE=1

May the force be with you

For those looking to improve performance you need to install OpenBlas before compiling dlib. It does make things a bit faster if you do.

To install OpenBLAS

sudo apt-get install libopenblas-dev liblapack-dev libatlas-base-dev

Important

As I found out painfully, OpenBLAS does help, but it will chew up your cores and cause days of head banging if you don't set the following environment variables in your shell before running any recognition.

export OPENBLAS_NUM_THREADS=1 
export OPENBLAS_MAIN_FREE=1

May the force be with you

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boomza19193 Apr 23, 2018

pi@raspberrypi:~ $ git clone -b 'v19.6' --single-branch https://github.com/davisking/dlib.git dlib/
Cloning into 'dlib'...
fatal: unable to access 'https://github.com/davisking/dlib.git/': GnuTLS recv error (-54): Error in the pull function.

How i solve this problem?

pi@raspberrypi:~ $ git clone -b 'v19.6' --single-branch https://github.com/davisking/dlib.git dlib/
Cloning into 'dlib'...
fatal: unable to access 'https://github.com/davisking/dlib.git/': GnuTLS recv error (-54): Error in the pull function.

How i solve this problem?

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