Max comes with a few examples of the slit scan technique, and I have also developed my own.
But I want to expand the slit scan technique with a "time warp map".
In "traditional" slit scan , only one line of the input video is drawn each frame.
With a "time warp map", every pixel is drawn, but each pixel has it own delay as determined by a black and white mask.
An example of its implementation : http://jamesgeorge.org/ofxslitscan/
Can this be easily built in Max 6?