C + + Builder programming, implement open an image, the pixel gray value of the specified pixel area averaging, for example (20, 20) to (40, 40) square area average pixel gray value, and will write a great god help, beginner, I can't tune out,,,

CodePudding user response:

Why the other'll humor, code is not in the original post to you stick out?
Refer to the change,
Control the I and j of the initial value of 20, 20, w, h value for 40, 40,