Apologies for the newbie question, but I’ve been working on a Java openCV project and I need to determine the colour at a certain pixel in the image. How would I go about this assuming I don’t want to use the File and Color libraries most tutorials seem to use?
accessing pixels goes like this:
Mat frame = ... double d = frame.get(77,88); // y,x ! Scalar p = new Scalar(d); // you can nicely print it ! System.out.println(p);
to “view” the value, maybe reserve some region:
Rect roi = new Rect(10,10,20,20);
and draw color there: