OpenCV: imread gives CV_8UC3, can't convert to CV_8UC4?

Question

Need help with an image I try to load and convert with OpenCV:

Here is my code:

templ = imread("Template.bmp",-1);
cout<<"templ before convert: "<<type2str(templ.type())<<endl;
templ.convertTo(templ,CV_8UC4);
cout<<"templ after convert: "<<type2str(templ.type())<<endl;

This gives me always CV_8UC3! Is the image not made for converting to 4 channels or something like this? Or do I need a scaling factor (read about sth like this)?

Thanks for help, best regards!

Answer 1

cvtColor( src,dst, CV_BGR2BGRA );