blp330 wrote:
Image difference will give 0? You mean there are no pixels different between offset3.png and offset4.png?
I use boost::gil::equal_pixels, it returns false to me. I also use some comparison application, it hits me that the only different part is background pattern Do a pixel-wise difference. Result(x,y) = input1(x,y) - input2(x,y)
the resulting matrix will contains zone where the pixel value will be 0 and some where it wont. It can be then thresholded so you get a mask. I assume gil::equal_pixels do a reduction on such thing by returning a single bool which is not what you want here -- ___________________________________________ Joel Falcou - Assistant Professor PARALL Team - LRI - Universite Paris Sud XI Tel : (+33)1 69 15 66 35