43 lines
1.1 KiB
Python
43 lines
1.1 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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Created on Sun Jan 13 18:20:31 2019
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@author: fh
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"""
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import numpy as np
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import matplotlib.pyplot as plt
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import cv2
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cap = cv2.VideoCapture(0)
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ret, frame = cap.read()
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L=np.size(frame[:,0,0])
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C=np.size(frame[0,:,0])
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col=np.size(frame[0,0,:])
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print("Lignes : ",L)
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print("Colonnes : ",C)
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print("Canaux : ",col)
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while(True):
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# Capture frame-by-frame
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ret, frame = cap.read()
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# Our operations on the frame come here
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gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
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sobel = cv2.Sobel(gray,cv2.CV_8U,1,0,ksize=3)
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hist = cv2.calcHist([gray],[0],None,[256],[0,256])
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# Display the resulting frame
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cv2.imshow('Coloré',frame)
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cv2.imshow('Gris',gray)
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cv2.imshow("Sobel",sobel)
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cv2.destroyAllWindows()
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if cv2.waitKey(1) & 0xFF == ord('q'):
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break
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# When everything done, release the capture
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cap.release()
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print("Lignes : ",np.size(hist[:,0]))
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print("Colonnes : ",np.size(hist[0,:]))
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print("Canaux : ",np.size(hist[0,0]))
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plt.plot(np.linspace(10,255,246),hist[10:,0])
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plt.title("Histogramme total\nTaille d'image : {}x{}".format(L,C))
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plt.xlim([10,255])
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plt.show()
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