i'll admit right now i know nothing of the JMF . but i would like to know if their is any way to read the differences in light and dark patches .
such as the the pixel rbg value , or better yet a gray scale value from each pixel or something like that .
cause what i would like to attempt it making a java based multi-touch pad input reader from a webcam ,and since the 2 most common forms of home made multi-touch pads are either infrared pen , or shadow mapping all i need to do is watch for the differences in these areas