geometry - Basic geometrical tools

• bresenhamline - 2D Bresenham line algorithm.
• bresenhamline_base.
• downscalexy - Downsample monoticaly an input image.
• upscalexy - Upsample monotically an input image.
• gridblk - Compute the centers’ coordinates and the size of the square blocks dividing an image in regular tiles.
• drawgestalt - Create and/or draw simple figures of Gestalt contours.
• drawgestalt_base.
• drawcircle - Create and/or draw a simple circle.
• drawcircle_base.
• drawleakcircle - Create and/or draw a discrete disk with holes.
• drawleakcircle_base.
• sampledisk - Sample lattice points inside disks.
• sampledisk_base.
• sampletriangle - Sample lattice points inside triangles.
• sampletriangle_base.