INSIDE TESTING FOR PATHS USING A DERIVATIVE MASK

Systems and methods for identifying pixels that are inside a two-dimensional path may be used to fill the path. The path is segmented and a slope direction is determined for each pixel that is covered by the segmented path. The slope directions are stored in a derivative mask that may be integrated for each scanline to produce a fill mask. The resulting fill mask indicates the pixels that are inside the two-dimensional path. The fill mask may be used to fill the path.