Shadow detection and removal is an important task when dealing with colour outdoor images. Shadows are generated by a local and relative absence of light. Shadows are, first of all, a local decrease in the amount of light that reaches a surface.

基于GFO和标记点分水岭算法的医学图像分割 利用基于广义模糊算子 GFO 的边缘检测算法来改进标记点分水岭分割 很有用-GFO and marking points on the watershed algorithm for medical image segmentation based on generalized fuzzy operator GFO edge detection algorithm to improve the marking point of the waters