A BTC-COMPRESSED DOMAIN INFORMATION HIDING METHOD BASED ON HISTOGRAM MODIFICATION AND VISUAL CRYPTOGRAPHY

摘要

This paper presents an information hiding method in the BTC-compressed domain based on histogram modification and visual cryptography. By using the visual cryptography algorithm, the secret image is divided into several transparencies, which are called shared images. Then, one shared image is embedded into the BTC-compressed data through histogram modification which is a reversible information hiding algorithm. When there is any need to recover the secret image, the shared image which formerly embedded into the BTC-compressed data can be extracted. Stacking the embedded shared image and the shared image we have already known, the secret image can be recovered. Experimental results demonstrate the feasibility of the proposed method, and the tampering location ability is quite good.