pjspillai

Replace first character in each line with another
(Useful for annotatin label replaceing stuff)

inp_file.txt
  1 chrX_73833098_73834098
  1 chrX_73889652_73890652
  1 chrX_91194501_91195501
  1 chrX_92000157_92001157
  1 chrX_92106500_92107500

pjspillai

git clone --recursive https://github.com/opencv/opencv_contrib.git
git clone --recursive https://github.com/opencv/opencv.git

Make sure the CmakeCache params are loaded (refer the one in gist), in cmake-gui

make -j8 install
sudo ldconfig


Note: This might not setup python opencv version correctly. It initially showed me 3.2 when I did

pjspillai

# This is the CMakeCache file.
# For build in directory: /home/preeti/softwares/opencv/opencv/build
# It was generated by CMake: /usr/bin/cmake
# You can edit this file to change values found and used by cmake.
# If you do not want to change any of the values, simply exit the editor.
# If you do want to change a value, simply edit, save, and exit the editor.
# The syntax for the file is as follows:
# KEY:TYPE=VALUE
# KEY is the name of a variable in the cache.
# TYPE is a hint to GUIs for the type of VALUE, DO NOT EDIT TYPE!.

pjspillai

# Package Information for pkg-config

prefix=/usr/local
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir_old=${prefix}/include/opencv4/opencv
includedir_new=${prefix}/include/opencv4

Name: OpenCV
Description: Open Source Computer Vision Library

pjspillai

# ================= Removing all gcc/g++ and clean build
sudo apt-get remove gcc-7
sudo apt-get remove g++-7
sudo apt-get purge gcc-7* g++-7*
sudo apt autoremove


  # =======================================

pjspillai

Problem occurs with anaconda's Qt installation conflicting with the default Qt5 installation (installed via .run)

sudo ln -sf /home/ppillai/anaconda2/envs/tensorflow/plugins/platforms /usr/bin/platforms

pjspillai

OS: Ubuntu 18.04
Others: Opencv, NCCL, CUDA 9.2, CUDNN

NOTE: For Ubuntu 17.04/ 18.04, there's an alternate way to directly install Caffe via apt-get install caffe-cpu and caffe-cuda
I am installing from source so that I can with other caffe algorithms that demand the existence of a CAFFE_ROOT directory


Modify Makefile.config file
--------------------

pjspillai

https://www.pcsuggest.com/nvidia-optimus-ubuntu/

pjspillai

Download NVIDIA and CUDA drivers from here (.run files)
https://developer.nvidia.com/cuda-downloads?target_os=Linux&target_arch=x86_64&target_distro=Ubuntu&target_version=1604&target_type=runfilelocal
http://www.nvidia.com/content/DriverDownload-March2009/confirmation.php?url=/XFree86/Linux-x86_64/390.25/NVIDIA-Linux-x86_64-390.25.run&lang=us&type=TITAN

disable nouveau
disable XServer
rm /tmp .X* filesuname -r
sudo update-initramfs -u [update initramfs]

pjspillai

This is a simple example of the MQTT protocol with Node.js. The client code has also been tested with a combination of C++ servers and clients.