Research and Implementation of an Improved Canny Edge Detection Algorithm
Dan Dan Han, Tian Chi Zhang, Jing Zhang · Key engineering materials · 2013
Edge detection is one of the most important steps in image processing and pattern recognition, it is also a critical technology of hand bone identification. Canny edge detection algorithm is simple, easy to implement and fast execution advantage, therefore, it still maintain a certain degree of competitiveness in the practical application. Firstly, the principles and the existing problems of Canny algorithm are studied in this paper, against threshold problem, improved method of an adaptive threshold is proposed, using Otsu method selected threshold, the split results would be better. Finally, the experimental results show that the proposed method can effectively extract the edge of the images.