Quaternion and Color Image Edge Detection
四元数与彩色图像边缘检测

Regarding R,G, B of color iamge pixel as the three weights of color space vector, two color iamge edge detec- tion algorithms have been proposed using corresponding knowledge of vector field flux and quaternion. Maximizing vec- tor flux based detection algorithm can detect more edge details comparing conventional algorithm, simultaneously, this algorithm has quite self-adaptive ability to different nature iamges. A novel edge detection algorithm also be proposed based on quaternion using the easy quaternion expressing of vector rotating. Experiment result illuminate that the two algorithms have good detection effects to color iamge, especially, quaternion vector rotating based algorithm can detect much more texture details which the conventional algorithm can't realize it.