In order to realize reversible data hiding in image as well as improve embedding capacity and secrecy

a reversible data hiding method based on modified integer linear transform is proposed. Large capacity secret information can be embedded adaptively in the translated image blocks with less distortion

which is transformed by the modified integer transform introducing less distortion. After transmitted in open channels

the hidden data can be extracted correctly and the host image can be lossless recovered from the marked image. The experimental results show that the proposed method has larger embedding capacity and better secrecy. It can be applied to hiding case history in medical images and also can be used for lossless covert communication in remote sensing images

military images and etc.