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Hog compilation error

asked 2017-09-09 13:29:16 -0500

peter_cz gravatar image

Dears,

I'm trying to understand HOG descriptor which I am using e.g.

//extraction of HoG feature
HOGDescriptor hog(Size(32, 16), Size(4, 4), Size(8, 8), Size(4, 4), 9);
// Size(32,16), //winSize
// Size(8,8), //blocksize
// Size(4,4), //blockStride,
// Size(4,4), //cellSize,
// 9, //nbins,

hog.compute(img1_gray, descriptorsValues1, Size(0, 0), Size(0, 0), locations1);

I have example from scikit-image http://scikit-image.org/docs/dev/auto...

fd, hog_image = hog(image, orientations=8, pixels_per_cell=(16, 16),
                    cells_per_block=(1, 1), visualize=True)

I wanna undestand params of OpenCV HOGDescriptor and translate hog params from scikit-image hog to opencv

What winSize, blocksize, blockStride, cellSize and nbins mean of HOGDescriptor?

What descriptors, winStride, padding, locations of hog.compute() mean?

Thank you.

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Comments

have you got any cv knowledge yourself?

peter_cz gravatar imagepeter_cz ( 2017-09-09 17:04:43 -0500 )edit

what do you want to achieve using HOG?

sturkmen gravatar imagesturkmen ( 2017-09-09 18:08:03 -0500 )edit

Access HOG from within OpenVX framework

peter_cz gravatar imagepeter_cz ( 2017-09-10 03:26:12 -0500 )edit

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answered 2017-09-09 15:36:28 -0500

updated 2017-09-09 16:56:14 -0500

see this post you can train your model to detect objects. you don't need deeper knowledge of params.documentation link

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Asked: 2017-09-09 13:29:16 -0500

Seen: 77 times

Last updated: Sep 09 '17