Hi and thanks for your help!
I am trying to use CascadeClassifier.detectMultiScale()
I understand that it takes as an input a Mat of type CV_8U.
Therefore, after using bitmapToMat()
I try to convert the Mat to CV_8U. with
mat.convertTo(mat2, CV_8U);
but apparently Eclipse does not take as an argument CV_8U
Thank you for your help!!