mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
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34 lines
1.2 KiB
34 lines
1.2 KiB
#!/usr/bin/python |
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import cv2.cv as cv |
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import sys |
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import urllib2 |
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if __name__ == "__main__": |
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cv.NamedWindow("win") |
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if len(sys.argv) > 1: |
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filename = sys.argv[1] |
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im = cv.LoadImage(filename, cv.CV_LOAD_IMAGE_GRAYSCALE) |
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im3 = cv.LoadImage(filename, cv.CV_LOAD_IMAGE_COLOR) |
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else: |
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try: # try opening local copy of image |
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fileName = '../cpp/left01.jpg' |
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im = cv.LoadImageM(fileName, False) |
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im3 = cv.LoadImageM(fileName, True) |
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except: # if local copy cannot be opened, try downloading it |
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url = 'https://raw.github.com/opencv/opencv/master/samples/cpp/left01.jpg' |
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filedata = urllib2.urlopen(url).read() |
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imagefiledata = cv.CreateMatHeader(1, len(filedata), cv.CV_8UC1) |
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cv.SetData(imagefiledata, filedata, len(filedata)) |
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im = cv.DecodeImageM(imagefiledata, cv.CV_LOAD_IMAGE_GRAYSCALE) |
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im3 = cv.DecodeImageM(imagefiledata, cv.CV_LOAD_IMAGE_COLOR) |
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chessboard_dim = ( 9, 6 ) |
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found_all, corners = cv.FindChessboardCorners( im, chessboard_dim ) |
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print found_all, len(corners) |
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cv.DrawChessboardCorners( im3, chessboard_dim, corners, found_all ) |
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cv.ShowImage("win", im3); |
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cv.WaitKey() |
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cv.DestroyAllWindows()
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