Python plug-ins for the Gimp ★ Plug-ins. Magicmesh Draw a layer with dots, rectangles or hexagons and use the average color of the area below from the current drawable.
Click on the image to see a Fullsize example of the output. There are several Magicmesh Scripts included, they do nearly the same but in a different way. Scanline Layer Create a new Layer or Layer Mask with a Scanline Effect. Animation. Documentation. Tutorials.