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@PonDad /app.py
Created Nov 11, 2017

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【Movidius™NCS&RaspberryPi】リアルタイム物体認識【TensorFlow】
#! /usr/bin/env python3
from mvnc import mvncapi as mvnc
import sys
import numpy
import cv2
path_to_networks = './'
path_to_images = '../../data/images/'
graph_filename = 'graph'
#image_filename = path_to_images + 'cat.jpg'
image_filename = path_to_images + 'shot.png'
devices = mvnc.EnumerateDevices()
if len(devices) == 0:
print('No devices found')
quit()
device = mvnc.Device(devices[0])
device.OpenDevice()
with open(path_to_networks + graph_filename, mode='rb') as f:
graphfile = f.read()
mean = 128
std = 1/128
categories = []
with open(path_to_networks + 'categories.txt', 'r') as f:
for line in f:
cat = line.split('\n')[0]
if cat != 'classes':
categories.append(cat)
f.close()
print('Number of categories:', len(categories))
with open(path_to_networks + 'inputsize.txt', 'r') as f:
reqsize = int(f.readline().split('\n')[0])
graph = device.AllocateGraph(graphfile)
cap = cv2.VideoCapture(0)
end_flag, c_frame = cap.read()
while end_flag == True:
#ret, frame = cap.read()
#cv2.imshow("Show FLAME Image",c_frame)
cv2.imwrite(image_filename, c_frame)
img = cv2.imread(image_filename).astype(numpy.float32)
dx,dy,dz= img.shape
delta=float(abs(dy-dx))
if dx > dy:
img=img[int(0.5*delta):dx-int(0.5*delta),0:dy]
else:
img=img[0:dx,int(0.5*delta):dy-int(0.5*delta)]
img = cv2.resize(img, (reqsize, reqsize))
img=cv2.cvtColor(img,cv2.COLOR_BGR2RGB)
for i in range(3):
img[:,:,i] = (img[:,:,i] - mean) * std
print('Start download to NCS...')
graph.LoadTensor(img.astype(numpy.float16), 'user object')
output, userobj = graph.GetResult()
top_inds = output.argsort()[::-1][:5]
print(''.join(['*' for i in range(79)]))
print('inception-v3 on NCS')
print(''.join(['*' for i in range(79)]))
for i in range(5):
print(top_inds[i], categories[top_inds[i]], output[top_inds[i]])
text = categories[top_inds[0]] + str("{0:.4f}".format(output[top_inds[0]]*100)) + "%"
print(''.join(['*' for i in range(79)]))
#graph.DeallocateGraph()
#device.CloseDevice()
print('Finished')
font = cv2.FONT_HERSHEY_DUPLEX
font_size = 1
font_thickness =2
cv2.putText(c_frame,text,(20,40),font,font_size,(0,140,255),font_thickness,cv2.LINE_AA)
cv2.imshow("Movidius™ NCS & RaspberryPi",c_frame)
key = cv2.waitKey(1)
if key == ord('q'):
break
end_flag, c_frame = cap.read()
cap.release()
cv2.destroyAllWindows()
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