A New Approach for Sharpness and Contrast Enhancement of an Image

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Unsharp masking is good tool for sharpness enhancement, it is an anti blurring filter. By using unsharp masking algorithm for sharpness enhancement, the resultant image suffering with two problems, first one is a hallo is appear around the edges of an image, and second one is rescaling process is needed for the resultant image. Enhancement of contrast and sharpness of an image is required in many applications. The aim of this paper is to enhance the contrast and sharpness of an image simultaneously and to solve the problems associated with normal unsharp masking, the authors proposed new algorithm based on exploratory data model concept.