I am trying to extract RGB data from an image that I can convert to waveform or frequency data. I am probably going about this the wrong way but the patch below is what I have done so far (not much).
What I am not sure about with this is the (x y)coordinates. The pic I used is only 144 x 162 in Photoshop but the (x y) coordinates continue beyond those ranges. How can I get these two to correspond? Also, if you know of a better way to go about this let me know =)