Multibit Assignment Steganography in Palette Images(內容摘要)

Abstract
This letter proposes a novel multibit assignment steganography for palette images,
in which each gregarious color that possesses close neighboring colors in the palette
is exploited to represent several secret bits.

這篇研究提出了一種偽裝的多位轉讓調色板圖像，
其中每個色群，擁有近鄰色在調色板上
被利用為代表的多個秘密位。

A method for producing a usable multibit assignment is presented.

一個產生可用的多位元轉讓的方法被提出。

For any pixel with a gregarious color, a data-hider can always find a suitable neighbor of the original color that
corresponds to a prefix of secret bit-sequence and then replaces the original color with the found neighboring color.

對於任何一個群居像素的顏色，資料隱藏者總能找到合適的鄰居原來的顏色
對應前綴秘密位序列，然後替換原來的顏色與周邊發現顏色。

Experiment results show that the proposed steganography provides a good payload-distortion performance.

實驗結果證明，被提出的偽裝學有效載荷提供了良好的失真性能。