rookieWanZ

【Algorithm】How should I make an Image sequence by order of Z?

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I run the[ code 8.4 LucasKanade1](https://github.com/CImg-Image-Processing-Book/sources/blob/master/Chapter8/Code8_4.cpp) At the 35th line, access the cimglist grad(2), and this grad(2) is all zero( the 0 and 1 part has normal value) How should...