Contrast Enhancement Using Adaptive Gamma Correction With Weighting Distribution Technique Full Matlab Project with Source Code

ABSTRACT

              One of the important techniques in digital image processing is to enhance images. Contrast enhancement is a method that is used to enhance images for viewing process or for further analysis of images. Main idea behind contrast enhancement techniques is to increase contrast and to preserve original brightness of images. In this paper a contrast enhancement technique is proposed that first segments histogram of image recursively and then applies Gamma Correction with Weighting Distribution (GCWD) Technique. The proposed technique is basically an improvement over GCWD technique and aims to get better contrast enhancement and brightness preservation than GCWD technique. The image enhancement is one of the significant techniques in digital image processing. It has an important role in various fields where images are to be understood and analyzed. Image enhancement is done on an image to improve its visual effects and quality or to make it more appropriate for further processing by another application. An image can have low contrast or bad quality due to a number of reasons like poor quality of imaging device, adverse external conditions at the time of image acquisition and many more. The contrast enhancement is one of the commonly used image enhancement method.

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