A Novel Method for Edge Detection Using 2 Dimensional Gamma Distribution | Science Publications

Journal of Computer Science

Ali E. Zaart¹ 

关键词: Edge detection;    gradient;    masks construction;    gamma distribution;   

DOI  :  10.3844/jcssp.2010.199.204

学科分类：计算机科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: Edge detection is an important field in image processing. Edges characterize object boundaries and are therefore useful for segmentation, registration, feature extraction, and identification of objects in a scene. Approach: This study presented a novel method for edge detection using 2D Gamma distribution. Edge detection is traditionally implemented by convolving the image with masks. These masks are constructed using a first derivative, called gradient or second derivative called Laplacien. Thus, the problem of edge detection is therefore related to the problem of mask construction. We propose a novel method to construct different gradient masks from 2D Gamma distribution. Results: The different constructed masks from 2D Gamma distribution are applied on images and we obtained very good results in comparing with the well-known Sobel gradient and Canny gradient results. Conclusion:The experiment showed that the proposed method obtained very good results but with a big time complexity due to the big number of constructed masks.

【 授权许可】

Unknown