Title :
Palette Partition Based Data Hiding for Color Images
Author :
Li, Yu-Chiang ; Tsai, Piyu ; Lin, Chih-Hung ; Yeh, Hsiu-Lien ; Huang, Chien-Ting
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Southern Taiwan Univ., Tainan, Taiwan
Abstract :
In this paper, a palette partition based data hiding for color images is proposed. The palette used in color image quantization is partitioned into sub-palettes according to the similarity of colors. Any size of subpalettes is permitted and a color can appear in several sub-palettes at the same time. Furthermore, a mapping function is designed to process color embedding for color belongs to three-color sub-palette. The experimental results show that the proposed scheme has a higher hiding capacity than that of the similar methods. Furthermore, a large ratio between embedded secret image and the image distortion is obtained by the proposed scheme.
Keywords :
data compression; distortion; image coding; image colour analysis; steganography; color image data hiding; color image embedding; color image quantization; embedded secret stego-image distortion; mapping function; three-color subpalette partition; Clustering algorithms; Color; Computer science; Data encapsulation; Data engineering; Discrete wavelet transforms; Partitioning algorithms; Process design; Quantization; Signal processing;
Conference_Titel :
Intelligent Information Hiding and Multimedia Signal Processing, 2009. IIH-MSP '09. Fifth International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4244-4717-6
Electronic_ISBN :
978-0-7695-3762-7
DOI :
10.1109/IIH-MSP.2009.276
