COMBINATION OF JPEG ALGORITHM AND WATERMARKING FOR INCREASING THE QUALITY AND COMPRESSION RATIO

SUBALI, MUHAMMAD and Madenda, Sarifuddin COMBINATION OF JPEG ALGORITHM AND WATERMARKING FOR INCREASING THE QUALITY AND COMPRESSION RATIO. Jurnal Ilmiah Ilmu Komputer Program Studi Sistem Informasi. (Submitted)

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Abstract

Jpeg formation is compression model of color image which is establish as an ISO and usually public used. Jpeg compression technique started by RGB to YCbCr colour transformation process. And each color component Y, Cb, and Cr compressed by Discrete Cosine Transform (DCT) process,. Quantizing and Cod- ing step by step. Bits of result coding from each component of Y, Cb and Cr combined one group in series. This paper explained compression technique can be optimized JPEG result compression by bit insertion of coding result from one color component to matrix quantization from another color component. The exper- iment shows that the same compression quality compression technique which develop in this paper have ratio of compression about 10.99% until 154% better then JPEG codec, and for the same compression ratio this technique give better quality compression.

Item Type: Article
Uncontrolled Keywords: Image Compression; JPEG; Watermarkning; MIG
Subjects: A General Works > AI Indexes (General)
Divisions: Fakultas Ilmu Komputer dan Teknologi Informasi > Program Studi Sistem Informasi
Depositing User: Mr Reza Chandra
Date Deposited: 01 Mar 2014 01:37
Last Modified: 01 Mar 2014 01:37
URI: http://repository.gunadarma.ac.id/id/eprint/1305

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