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Color Image Enhancement in Compressed DCT Domain J. Christopher Clement, M. Prabukumar and A. Baskar School of Electronics Engineering, School of Information Technology and Engineering, VIT University, Vellore, India, Department of Computer Science and Engineering, Amrita Vishwa Vidypeetham University, Coimbatore, India. Abstract Novel algorithm for image enhancement in compressed (DCT) domain is presented. Despite, few algorithms have been reported to enhance images in DCT domain, proposed algorithm differs from previous algorithms in such a way that it enhances both dark and bright regions of an image equally well. In addition, it outperforms in enhancing the chromatic components as well as luminance components. Since the algorithm works in DCT domain, computational complexity is reduced reasonably. Keywords: JPQM, DCT, Y-Cb -Cr Space, and Enhancement . ( P1150937863,
1.56 MB)
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