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mulSpectrums

what is the result of mulSpectrums? if input A = a+bi input B = c+di mulSpectrums(A, B, result, CV_DXT_MUL_CONJ, true)

then, result = (a+bi)(c-di)?? or just result = bi(-ci)??

Also what type of input is better? InputArray can be IplImage? CvMat? Mat? Also for the function mulSpectrums, input should be 2 channels? for real part and imaginary part??

if you dont mind, could you explain about the differences of those three data types?(IplImage, CvMat, Mat)

i also read this, but im not an English speaker. so it is hard tho. image description

I started just 1 week ago.

Please explain it as much as you can. Thanks a lot.