Textimage ciphering

Abstract

Digital image processing is an approach to alter the images in term of its resolution, size, proportions, number of pixels, shades and quality. Images are extensively used in communications on due of various facts. But image security in communication remains an essential aim. Coloration in images are originated by different color models, which are discussed with their actual potentials. In this paper, different image usage and protecting practices are discussed with their annoyances. There exists multiple protecting methods, in general called as encryption. In complex image encryption algorithms the logical operations such as ExOR, carries trivial but an essential part. While being a powerful operator, ExOR is also very less in terms of time and space complexity. In this paper, Textimage Ciphering algorithm is proposed. The proposed algorithm gives the finest probable combination of all discussed techniques. Also it has less time and space complexity which makes it more practicable. The suggested tactic is different from traditional protecting techniques, it advocates encoding of an image by transforming it in text form. The encoded text is then send and on receiver side, its first decoded then converted to image form which resemblance the original image. The rationality of image to text is expressed in detailed manner with clarification of each and every stage along with flowchart and programming details.