Registration module crashes [closed]

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Hi,

I was trying to use the new registration module from opencv_contrib.

I used the example code.

cv::reg::MapperGradProj mapper;
cv::Ptr<cv::reg::Map> mapPtr;
cv::reg::MapperPyramid mappPyr(mapper);
mappPyr.calculate(oimage,oimage2, mapPtr);

The program already fails calling the calculate function.

Error in ... free(): invalid next size (normal): 0x0000000002a5a590

Edit: Got it. I had to convert the image to float first.