问题
I have some image files in the drawable folder. And now, I want to convert them into opencv Mat object. I've found a function:
Mat img = Highgui.imread(inFile);
which is reading a file path to get the Mat.
However, I can't get path of my images as I can only read them by using their id like R.drawable.img1.
How could I achieve what I want?
回答1:
This should do
Mat img = Utils.loadResource(context, refrenceimgID, Highgui.CV_LOAD_IMAGE_COLOR);
Imgproc.cvtColor(img, gryimg, Imgproc.COLOR_RGB2BGRA);
来源：https://stackoverflow.com/questions/20184215/how-to-get-mat-with-a-drawable-input-in-android-using-opencv