Privacy preservation of ROI of medical image using squint pixel and PLSB hiding technique

Techno media is playing an important role on secure information due to rapid growth of the media. In telemedicine while transferring medical images tampers may be happened. As a part of protecting the information from the attacker, steganography is the art of hiding the information inside the cover medium with different carrier formats. In this paper, we propose a novel squint pixel based medical image steganographic technique to avoid easily distortion by an attacker. In this method, Original medical image itself acts as carrier image. A Medical image segmented into three sets of pixels, ROI and RONI and Border Pixels. The authentication data of ROI embedded in Squint Pixels of Border Pixels and information of ROI of medical image embedded in PLSB of squint pixels of RONI. Results of experiments on various medical images show that the proposed method produces high quality stego medical images with high accuracy and recovery of ROI data without loss.