Point-interactive Image Colorization

Point-interactive colorization is a task of colorizing images given user-guided clicks containing colors (a.k.a color hints). Unlike unconditional image colorization, which is an underdetermined problem by nature, point-interactive colorization aims to generate images containing specific colors given by the user.

Point-interactive colorization is evaluated by providing simulated user hints from the groundtruth color image. Following the iColoriT protocol, user hints have a size of 2x2 pixels and color is given as the average color within the 2x2 pixels.