Image Edge Detection Based on Cellular Neural Network and Particle Swarm Optimization
نویسندگان
چکیده
Image intensity shows abrupt changes at edges. So some typical edge detection operators are proposed by computing of local first or second derivative operate, such as Roberts, Prewitt, Sobel, LOG, Kirsh, etc. But several practices show that these typical operators are not ideal, and they can’t meet people’s demand for edge detection accuracy. Therefore, it is necessary to find some better methods to detect images edge.
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