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Image Steganography Algorithm with Minimizing Distortion In Cover Image | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 24, Issue 3, 2013, Pages 135-146 | ||
| Author | ||
| Rawsam A.Hasan | ||
| Abstract | ||
| Steganography is the art and science of hiding information such that its presence cannot be detected. It allows the people to communicate secretly by embedding messages in the texts, images, audio, video files or other digital carriers. This paper introduces an algorithm of steganography in image that use text file as a secret message embedded randomly through the image cover. A proposed algorithm is executed by embedding bits from a secret message in blue color byte of the pixel. To decrease the distortion that results due to embedding process, higher bits of the same byte is changed to compensate the difference between modified and original value of the color. The bits of message are distributed randomly over the cover image by using Linear Congruential Generator (LCG). Two metrics (MSE & PSNR) are applied to measure the amount of the distortion that due to the hiding process and to test the quality of the stego images. | ||
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