Abstract

Detection of lesion border from skin image is very essential for developing efficient non-invasive computer-aided diagnosis. For creation of an automatized system, edge detection is an essential step. An improved color space-based edge detection method with linear structure element is introduced in this paper. At first, the input image is converted to red color space and the Sobel operator is applied to detect the border. After this, linear structuring element is introduced, followed by filling up of holes to get appropriate segmented image. The performance of this method is measured by comparing its result with the results obtained by using a standard Sobel edge detection method.

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