Watermarking on PCAS compressed images | IEEE Conference Publication | IEEE Xplore

Watermarking on PCAS compressed images


Abstract:

Embedded Image Coding provides a gradual improvement in the reconstruction of image as transmission proceeds. Designing of a successful embedded image compression algorit...Show More

Abstract:

Embedded Image Coding provides a gradual improvement in the reconstruction of image as transmission proceeds. Designing of a successful embedded image compression algorithm involves the method of modeling and ordering in wavelet domain. A new embedded image compression algorithm Pixel Classification and Sorting (PCAS) is employed because of its effective and excellent compression performance. Watermarking of these PCAS compressed images is done to embed secret information for authentication purpose.
Date of Conference: 18-20 October 2010
Date Added to IEEE Xplore: 30 December 2010
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ISSN Information:

Conference Location: Moscow, Russia

I. Introduction

Even though various image compression algorithms that provides the possibility to progressively reconstruct better and better reproductions of the image as more and more encoded bit stream is received, Pixel Classified And Sorted(PCAS) [1] algorithm exploit the redundancy among wavelet coefficients. Digital images are transmitted or stored using as little resources as possible so its encoding is a little bit redundant. In a typical image, the values of pixels close to each other are strongly related in such a way that the energy of the image is concentrated to the lower frequencies. Exploiting this idea and encoding in the transform domain enables a much more reliable transmission of images.

References

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