How do I go about doing perpixel manipulation (both read and write) of an image?&nbsp; I&#39;m interested in doing some computer vision work in squeak as well.&nbsp; I find that Java on a 800Mhz PIII is fast enough to give me a reasonable frame rate on a 320x200 webcam... I&#39;m hoping squeak will have at least the same performance as well as being better for development.<br>