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minor changes in chessboard.py sample #1492

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This commit is contained in:
Alexander Shishkov 2012-02-17 08:48:06 +00:00
parent a6602dd75c
commit f3be34934e
1 changed files with 12 additions and 6 deletions
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18
samples/python/chessboard.py
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@ -10,12 +10,18 @@ if __name__ == "__main__":
im = cv.LoadImage(filename, cv.CV_LOAD_IMAGE_GRAYSCALE) im = cv.LoadImage(filename, cv.CV_LOAD_IMAGE_GRAYSCALE)
im3 = cv.LoadImage(filename, cv.CV_LOAD_IMAGE_COLOR) im3 = cv.LoadImage(filename, cv.CV_LOAD_IMAGE_COLOR)
else: else:
url = 'http://code.opencv.org/svn/opencv/trunk/opencv/samples/cpp/left01.jpg' try: # try opening local copy of image
filedata = urllib2.urlopen(url).read() fileName = '../cpp/left01.jpg'
imagefiledata = cv.CreateMatHeader(1, len(filedata), cv.CV_8UC1) im = cv.LoadImageM(fileName, False)
cv.SetData(imagefiledata, filedata, len(filedata)) im3 = cv.LoadImageM(fileName, True)
im = cv.DecodeImageM(imagefiledata, cv.CV_LOAD_IMAGE_GRAYSCALE) except: # if local copy cannot be opened, try downloading it
im3 = cv.DecodeImageM(imagefiledata, cv.CV_LOAD_IMAGE_COLOR) url = 'http://code.opencv.org/svn/opencv/trunk/opencv/samples/cpp/left01.jpg'
filedata = urllib2.urlopen(url).read()
imagefiledata = cv.CreateMatHeader(1, len(filedata), cv.CV_8UC1)
cv.SetData(imagefiledata, filedata, len(filedata))
im = cv.DecodeImageM(imagefiledata, cv.CV_LOAD_IMAGE_GRAYSCALE)
im3 = cv.DecodeImageM(imagefiledata, cv.CV_LOAD_IMAGE_COLOR)
chessboard_dim = ( 9, 6 ) chessboard_dim = ( 9, 6 )
found_all, corners = cv.FindChessboardCorners( im, chessboard_dim ) found_all, corners = cv.FindChessboardCorners( im, chessboard_dim )