Performance Optimized DCT Domain Watermarking Technique with JPEG
Jyoti Rani1, Tazeem Ahmad Khan2
1Jyoti Rani, M.Tech. Scholar, Department of ECE, Al Falah University, Faridabad (Haryana), India.
2Mr. Tazeem Ahmad Khan, Assistant Professor, Department of ECE, Al Falah University, Faridabad (Haryana), India.
Manuscript received on 10 July 2014 | Revised Manuscript received on 20 July 2014 | Manuscript Published on 30 July 2014 | PP: 20-24 | Volume-4 Issue-2, July 2014 | Retrieval Number: B1716074214/14©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Image compression is a widely addressed researched area. Many compression standards are in place. But still here there is a scope for high compression with quality reconstruction. The JPEG standard makes use of Discrete Cosine Transform (DCT) for compression. The introduction of the wavelets gave different dimensions to the compression. This paper aims at the analysis of compression using DCT and Wavelet transform by selecting proper threshold method, better result for PSNR have been obtained. Extensive experimentation has been carried out to arrive at the conclusion. Here we used simulation through using MATLAB simulator.
Keywords: Discrete Cosine Transform (DST), Wavelet Transform, PSNR, Image Compression.
Scope of the Article: Software Domain Modelling and Analysis