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Image Compression with Modified Skipline Encoding and Curve Fitting

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International Journal of Computer Applications
© 2013 by IJCA Journal
Volume 74 - Number 5
Year of Publication: 2013
Authors:
Saumya Sadanandan
V. K. Govindan
10.5120/12882-9786

Saumya Sadanandan and V K Govindan. Article: Image Compression with Modified Skipline Encoding and Curve Fitting. International Journal of Computer Applications 74(5):24-30, July 2013. Full text available. BibTeX

@article{key:article,
	author = {Saumya Sadanandan and V. K. Govindan},
	title = {Article: Image Compression with Modified Skipline Encoding and Curve Fitting},
	journal = {International Journal of Computer Applications},
	year = {2013},
	volume = {74},
	number = {5},
	pages = {24-30},
	month = {July},
	note = {Full text available}
}

Abstract

High quality digitized images have always been subject to high correlation: high image quality equals large file size. Image Compression is an important issue in Internet, mobile communication, digital library, digital photography, multimedia, teleconferencing and other applications. Application areas of Image Compression would focus on the problem of optimizing storage space and transmission bandwidth. Here a lossy method for image compression based on skip line encoding and curve fitting is proposed. Proposed approach involves two major processing steps: a lossless modified skip line encoding process to eliminate redundant scan lines in the image, and a lossy curve fitting based encoding for further redundancy elimination. The degree of compression is controlled based on the amount of loss that is affordable for applications making use of Peak Signal to Noise Ratio (PSNR) measure in the decision. The results obtained with the combined, modified skip line encoding and curve fitting approach, are analyzed in terms of compression ratio and PSNR. The approach provides improvements in compression ratio for all the tested images. The results obtained were found to be better than a state-of-the-art method in the literature.

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