Click a green button to select subject: sunflower, tree, or trees. Then hold shift while clicking flag for turbo. Simulates a kind of "impressionist" or "post-impressionist" painting. The low resolution points of paint don't just correspond to points in the real subject. The paint points put down early also influence subsequent ones put down. The successive paint points take on a life of their own.
A limited set color detectors look at the subject painting (hidden) and then dab a point of paint in the corresponding place on the canvass, but with some random displacement due to large size of brush. Paint dabs subsequently get reinforced by new paint dabs of the same color. The effect is a bit like pointillism. Pointillism involved some more interesting color contrast between adjacent "points" but inspired me nonetheless. The real impressionists and post-impressionists were far more creative, obviously. In brief, I used color sensing for a small set of colors then put large dots down for those colors. This abstracts the image into a relatively small set of colors, and with lower resolution. But new pen dots also reinforce older paint dots, so that the composition takes on a life of its own, balancing realism and free form abstraction. Music: Claude Debussy, Étude pour les tierces (public domain, find it on wikimedia commons). Many call Debussy's music, such as this, "impressionist," but the composer himself rejected that title. To me, Debussy's music fits beautifully with impressionist paintings, so I include it.