I've been working with Processing. I'm currently learning computer vision and I've been doing this by alternating my own functions and JavaCVPro functions.

For one of my works, I've got to extract rectangles and triangles from an image given to me by the teacher. I've managed to do that, but the triangles and rectangles are shown on the frame. I need to get that image to save to PGM (my own function does that), but I don't know how.

Thanks in advance.

PS: I've managed to done that by saving with function output an then load that image into a PImage object. Is there another way?