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DCT with Quad tree and Huffman Coding for Color Images

by Sandhya Kadam, Vijay Rathod
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 173 - Number 9
Year of Publication: 2017
Authors: Sandhya Kadam, Vijay Rathod
10.5120/ijca2017915431

Sandhya Kadam, Vijay Rathod . DCT with Quad tree and Huffman Coding for Color Images. International Journal of Computer Applications. 173, 9 ( Sep 2017), 33-37. DOI=10.5120/ijca2017915431

@article{ 10.5120/ijca2017915431,
author = { Sandhya Kadam, Vijay Rathod },
title = { DCT with Quad tree and Huffman Coding for Color Images },
journal = { International Journal of Computer Applications },
issue_date = { Sep 2017 },
volume = { 173 },
number = { 9 },
month = { Sep },
year = { 2017 },
issn = { 0975-8887 },
pages = { 33-37 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume173/number9/28363-2017915431/ },
doi = { 10.5120/ijca2017915431 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-07T00:20:49.134593+05:30
%A Sandhya Kadam
%A Vijay Rathod
%T DCT with Quad tree and Huffman Coding for Color Images
%J International Journal of Computer Applications
%@ 0975-8887
%V 173
%N 9
%P 33-37
%D 2017
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Many methods are available for compression of an image file. Images are usually in the form of matrices and an uncompressed image uses a huge number of bytes for storage. Its applications in various fields are quality control, remote sensing, imaging science etc. The image compression methods which are popular on the transform based coding methods like Discrete Cosine Transform (DCT), Discrete Wavelet Transform (DWT) and fractals. However, these methods have drawbacks like low compression ratio and high encoding time. The proposed hybrid technique combines DCT and fractal quad tree decomposition with Huffman encoding of fixed threshold value for color images. The results for the proposed method are displayed and compared for performance parameters as compression ratio, encoding time, decoding time and PSNR.

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Index Terms

Computer Science
Information Sciences

Keywords

DCT Fractal Quad tree Huffman coding Fractal Image Compression Hybrid methodology

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