Online ISSN: 2515-8260

Keywords : PSNR

Enhanced Color Image Steganography for Recovery of Speed and Capacity in Embedded Images

Manish Kumar; Vishal Goyal

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 4, Pages 506-514

Now a day’s internet is turned into the mechanism for exchanging the delicate data, the safety of the exchanged message become the most extreme need. Image steganography has developed out as the famous technique of data concealing that guarantees the safety of the conveying information. Picture files give high limit, and their recurrence of accessibility over internet is likewise elevated. Present paper, a technique for Color Image coding is recommended so as to hide the data beside a chose pixel and on the following estimation of the chosen pixel, that is, pixel + 1. One bit is covered up at the chose pixel, and the second bit is covered up on the pixel +1 esteem. On the premise of the seventh bit of the pixels of a picture, a numerical capacity is connected at the seventh bit of the pixels, which produces a brief variable (pixel + 1). The seventh bit of the chose pixel and seventh bit of pixel + 1 are utilized for data covering up and withdrawal. Based on a blend of these two qualities, 2 bits of the message is covered up on every pixel subsequent to execution, the effectiveness of the technique is kept an eye based on parameters like PSNR and MSE, and this method is efficient than some previously proposed methods. This proposed picture steganography demonstrated promising, fascinating outcomes when contrasted and other existing strategies.

Secure Hybrid Watermarking Technique In Medical Imaging

G. Nagaraju; P. Pardhasaradhi; V. S. Ghali; G.R.K Prasad

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 5, Pages 160-176

Medical imaging organizations currently face a significant problem with stealing of medical data. Watermarking is a powerful tool that can be used to authorize the hidden information in cover image. The unique features associated with watermarking are authorization and copyright protection. Because of its unique characteristics, watermarking associated with medical data hiding gives more robustness in medical imaging. In spite of this adding security to watermarking in medical imaging, gives more protection for medical information. This paper explored two main fields that, the encryption of medical images using DNA Encoding and Spatiotemporal Chaos Algorithm and the embedding of medical images in cover image using hybrid transformation of NSCT, RDWT and SVD. The goal of this study was to develop a methodology to improve the robustness, imperceptibility and security for medical information without implementing a physical model, thus saving time, money and reducing the risks associated with hacking partners. For this paper, I used patient health document as one watermark and his medical image as another watermark. The theoretical model has demonstrated that it is possible to use this type of technique and apply it to a complex digital image transmission. The correlation observed before and after encryption and embedding procedures. Experimental results show how robustness and imperceptibility and security of medical images are improved.