A Data Hiding Method for Image Retargeting

摘要

Now-a-day, it is necessary to modify image size for fitting different display devices. This process is called image retargeting. If users hide a secret image into a host image. The hiding data may loss after the retargeting process. This paper proposed a data hiding method which the secret image will not loss after the image has been retargeted. Based on the fault-tolerance property of secret image sharing scheme, many shares are generated from a secret image. The shares are embedded in many locations of the host image. This means the hiding data may not delete after the image has been retargeted. The result is suitable for the video copyright protection between different devices. An experiment is also presented.