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2013-05-07 12:21:38 -0600 commented answer building opencv-python with visual studio 2010sp 1

Thank you. It solved my issue.

2013-05-07 01:29:14 -0600 asked a question building opencv-python with visual studio 2010sp 1

I built opencv 2.4 from sources, but after installation i can't access it from python.

Import cv2 fails with error:

ImportError: DLL load failed: The specified module could not be found.

I found that my cv2.pyd has size about 1 mb, while cv2.pyd from opencv installer has size about 9 mb.

i run cmake with this argument:

cmake -D CMAKE_BUILD_TYPE=RELEASE ..

compiling with vs 2010sp1 on windows 7x64 for 32bit version of python2.7

Thanks

2013-04-14 13:05:09 -0600 commented answer cv2.cv.mat 64FC3 to grayscale

Thank you for advice, that did what it should: cv2.imshow("img",numpy.dot(array.reshape(320,240,3), [0.114,0.587,0.299]))

2013-04-14 12:47:58 -0600 received badge  Supporter (source)
2013-04-14 11:36:51 -0600 asked a question cv2.cv.mat 64FC3 to grayscale

Hello. I managed to convert 64 bit float numpy array to cv material and display it. So how can i convert it to grayscale?

mat
<cvmat(type=42424016 64FC3 rows=320 cols=240 step=5760 )>