International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 103 - Number 4 |
Year of Publication: 2014 |
Authors: Majid Reza Vahidi, Mohammad Mansour Riahi Kashani, Alireza Bagheri |
10.5120/18060-8991 |
Majid Reza Vahidi, Mohammad Mansour Riahi Kashani, Alireza Bagheri . An Efficient Gradient based Algorithm for Improving Performance of Image Edge Detection. International Journal of Computer Applications. 103, 4 ( October 2014), 7-14. DOI=10.5120/18060-8991
Quality and execution time are two important factors for evaluation of edge detection algorithms. In these algorithms, there is a trade-off between quality and execution time. Some algorithms only concentrate on quality and some of them are fast and low quality. Efficient methods try to achieve high quality in a low time. This research concentrates on improvement of gradient based edge detection that is fast method and appropriate for real-time processing. The proposed algorithm reduces execution time by removing many pixels from computations. It calculates gradient and angle class of remaining pixels in a very efficient way so that it reinforces quality and locality of edges. The results of this algorithm indicated improvement of performance in comparison to Canny and LOG algorithms.