c++ - Data type assertion fail in OpenCV -


i trying use discrete fourier transform (dft) , using this link

i using gray scale image(8uc1) , when run program following error appears on screen :

opencv error: assertion failed (datatype<_tp>::channels == m.channels()) in cv:: mat_<float>::operator =

and breaks @ following line

mat planes[] = { mat_<float>(padded), mat::zeros(padded.size(), cv_32f) };


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