Edge Detection Based on Multi-Structure Elements Morphology

Edge detection is an important pre-processing step in image analysis. Conventionally, mathematical morphology edge detection methods use single and symmetrical structure elements. But they are difficult to detect complex edge feature, because they are only sensitive to image edge which has the same direction of structure elements. This paper proposed a novel edge detection algorithm based on multi-structure elements morphology of eight different directions. We got eight different edge detection results by using morphological gradient algorithm respectively, and final edge result was got by using synthetic weighted method. The experimental results showed that the proposed algorithm was more efficient for edge detection than conventional mathematical morphological edge detection algorithms and differential edge detection operators.