I am trying to figure out how to tell my Mac to return the value of a specific pixel. for example, what is the value of the pixel found at line 34 column 27 of the_image. any ideas?
you can give iMagine Photo a list of points {x,y} and it will return a list of {r,g,b} values for each point in the image.
See: http://www.yvs.eu.com/imagine.html
for more details.
Disclaimer:
I am the author of iMagine Photo.