StereoBM in OpenCV 3 (Python) missing module

answered 2015-04-14 02:11:47 -0600

berak
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you will have to use the 'create' function:

>>> help(cv2.StereoBM_create)
Help on built-in function StereoBM_create:

StereoBM_create(...)
    StereoBM_create([, numDisparities[, blockSize]]) -> retval

>>> help(cv2.StereoSGBM_create)
Help on built-in function StereoSGBM_create:

StereoSGBM_create(...)
    StereoSGBM_create(minDisparity, numDisparities, blockSize[, P1[, P2[, disp12MaxDiff[, preFilterCap[, uniquenessRatio[, speckleWindowSize[, speckleRange[, mode]]]]]]]]) -> retval

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Thanks for the answer, it worked. Would you be so kind as to point me to some official documentation about this? The Python tutorials for OpenCV 3.0.0 still show the old createStereoBM()

techfort ( 2015-04-14 03:30:16 -0600 )edit

yea, that needs to be changed ;)

at least samples/python2/stereo_match.py has it correct.

berak ( 2015-04-14 04:54:14 -0600 )edit

actually no, it doesn't :/ AttributeError: 'module' object has no attribute 'StereoSGBM' . This is from a build based on mid-february commits because the python bindings were broken on opencv_contrib see this

techfort ( 2015-04-14 09:18:54 -0600 )edit

what's exactly wrong now ?

berak ( 2015-04-14 09:46:28 -0600 )edit

this line stereo = cv2.StereoSGBM(minDisparity = min_disp, calls StereoSGBM which python complains it's not an attribute of cv2. Maybe the method signature has changed?

techfort ( 2015-04-15 11:49:20 -0600 )edit

dear, look at the answer again, please ;)

berak ( 2015-04-15 13:10:16 -0600 )edit

Of course. Silly me, apologies! I will point out though that stereo_match.py still has the old signature :)

techfort ( 2015-04-16 00:57:31 -0600 )edit

not true !

berak ( 2015-04-16 00:59:35 -0600 )edit

Ok apologies again. My checkout of OpenCV 3 was about 4 months old.

techfort ( 2015-04-17 07:25:21 -0600 )edit

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