Image Contrast Enhancement using Histogram Equalization Plateau Limit with Gaussian Filtering Method for Brightness Preservation
Abstract
Contrast enhancement is an important factor in the image processing applications. Among the various techniques of contrast enhancement Histogram equalization (HE) is the besttechnique to get the image to be more enhanced than otherenhancement methods. The proposed Brightness Preserving Dynamic Histogram Equalization Absolute Plateau Limit (BPDHEAPL) method provides better brightness preservation without allowing in excess of contrast enrichment measure. This method decomposes the input image by computing the local maxima of the smoothed image using Gaussian filter which reduces the noise. Then the clipping process has been implemented which provides the good enhancement rate than the conventional methods. The experimental results show that the PSNR and AMBE of the proposed BPDHEAPL is better than the existing methods.
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