The Improved Algorithm of Edge Detection Based on Mathematics Morphology

In morphology, the structural elements of different sizes and shapes have different abilities in maintaining image detail and anti-noise, an adaptive algorithm of edge detection based on multi-structure and multi-scale element is presented in this paper. First, the existing morphological operators for edge detection are improved. Then, the weight coefficients of different scales and different shapes are determined respectively by using the method of morphological difference and calculating the information entropy of the edge-detected. Last, fuse together the edges to achieve the image edge. For the image with noise, the algorithm can filter out noise effectively, and the edge is continuous, smooth, clear outline. The experiment results show that the algorithm has good effect in edge detection, strong anti-noise capacity, and the objective evaluation and visual effect are good, too.

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