Image Encryption Based on Pixel Permutation and Text Based Pixel Substitution |
Author(s): |
| Pooja Hardiya , R.K.D.F. Institute of Science & Technology Bhopal (M.P.); Ravindra Gupta, R.K.D.F. Institute of Science & Technology Bhopal (M.P.) |
Keywords: |
| Encryption, Scrambling, Pixel Shuffling, Information Security, Skew Tent Map |
Abstract |
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Digital image Encryption techniques play a very important role to prevent image from unauthorized access. There are many types of methods available that can do Image Encryption, and the majority of them are scrambling algorithms based on pixel shuffling, which cannot change the histogram of an image. Hence, their security performances are not good. The encryption method that combines the pixel exchanging and gray level changing can handles reach a good chaotic effect. In this paper we focus on an image encryption technique based on pixel wise shuffling with the help of skew tent map and text based pixel substitution. The PSNR, NPCR and CC obtained by our technique shows that the proposed technique gives better result than the existing techniques. |
Other Details |
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Paper ID: IJSRDV2I7024 Published in: Volume : 2, Issue : 7 Publication Date: 01/10/2014 Page(s): 142-145 |
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