Hi there,
I am trying to use the FeatureDetector with SIFT/SURF. Using it without a mask, just like:
detector->detect(cv::Mat& input, std::vector<cv::keypoint>& keypoints) works perfect for me.
I am getting in problems when I try to use an additional mask. The documentation tells me to use a "8-bit integer matrix with non-zero values"
const Mat& mask=Mat()
Unfortunately, I do not understand what data type is meant here. Is this a CV_8U or CV_8S? I have tried several times, but I always get a segmentation fault.
Could you please help me what I am doing wrong? Thanks a lot! Johannes