These are some initial results from my experiments with using gradient sawtooth oscillators to control the horizontal and vertical ‘scanning’ of an image.
In the examples below, the overlaid color bars represent the gradients that produced the distortions to the image. The top bar controls the Vertical scan of the image, the bottom one the horizontal.
The distortions were produced by running the 2 colour-gradient oscillators through a very simple filter, which alters the levels of the Red Green and Blue channels independently. This has the effect of distorting the image in one of 3 seperate bands for each axis.
The source image is pretty grainy, I’m afraid.