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2016-06-23 20:49:06 -0600 | commented question | The HOG feature extraction visualization I mean line 175-180 https://github.com/Itseez/opencv/blob... |
2016-06-23 02:25:23 -0600 | asked a question | The HOG feature extraction visualization Hi all, I am using the HOGDescriptor class built-in the opencv 3.1 library. I can run the code to extract the descriptor values into the vector<float>.
However, I don't know which order the descriptors is stored in this vector "std::vector< float > &descriptors" row-column-bin or anything else. I really need the visualization of HOG descriptors. I also found the sample code here http://www.juergenwiki.de/work/wiki/d... But it seems that the order of 3 for-loops when he computes the gradient strengths conflict as usuall (we usually loop row then col then bin)
I am really embarrassed at this point. Hope anyone can help me. Thank you ! |