Image Contrast Enhancement using DWTSVD

International Journal of Computer Trends and Technology (IJCTT)          
© 2019 by IJCTT Journal
Volume-67 Issue-12
Year of Publication : 2019
Authors : Sandeepa K S
DOI :  10.14445/22312803/IJCTT-V67I12P111


MLA Style:Sandeepa K S  "Image Contrast Enhancement using DWTSVD" International Journal of Computer Trends and Technology 67.12 (2019):58-61.

APA Style Sandeepa K S. Image Contrast Enhancement using DWTSVD International Journal of Computer Trends and Technology, 67(12),58-61.

In this paper, we have proposed DWTSVD based contrast improvement of the digital images. The input image contrast is improved by altering intensity information obtained by applying SVD into the original image and the reconstructed approximation coefficient of the input image. The contrast of the image is enhanced by applying mask technique effectively between ISVD and reconstructed approximate, then mask image added with the original image. The proposed approach has tested for ordinary images by measuring its Peak Signal to Noise Ratio (PSNR) and Absolute Mean Brightness Error (AMBE) to check its performance.

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Discrete Wavelet Transformation (DWT), Reconstruction Approximation, Singular Value Decomposition (SVD), Masking function, Inverse Singular Value Decomposition (ISVD).