Semi-fragile watermarking algorithm of color image based on Slant Transform and channel coding

Author

Bao, Rui ; Zhang, Tianqi ; Tan, Fangqing ; Wang, Yu E.

Author_Institution

Chongqing Key Lab. of Signal & Inf. Process., Chongqing Univ. of Posts & Telecommun., Chongqing, China

Volume

2

fYear

2011

fDate

15-17 Oct. 2011

Firstpage

1039

Lastpage

1043

Abstract

In the paper, a new method for semi-fragile watermarking of color image based on Slant Transform and channel coding is proposed. This technique certifies the belongings of images by using authentication watermarks that are embedded in IF of Slant Transform regions. Recover manipulated regions by restore watermarks that are extracted from the former 11 coefficients of each block. Restore watermarks are embedded in the least significant bits of each pixels. For increasing robustness of the algorithm, calculate error correction coding and spread spectrum modulation to authentication watermarks before embedding them. Watermarking extraction does not need original image, it belongs to blind extraction.

Keywords

channel coding; error correction; image coding; image colour analysis; image watermarking; security of data; transforms; authentication watermark embedding; blind extraction; channel coding; color image; error correction coding; restore watermark; semifragile watermarking algorithm; slant transform; spread spectrum modulation; watermark authentication; watermark extraction; Authentication; Color; Error correction codes; Image restoration; Noise; Transforms; Watermarking; Channel coding; Nearly affine transformation; Slant Transform; color image; semi-fragile;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing (CISP), 2011 4th International Congress on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-9304-3

Type

conf

DOI

10.1109/CISP.2011.6100329

Filename

6100329