- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Image Authentication Based on Fractals | ||
| Al-Rafidain University College For Sciences | ||
| Article 1, Volume 0, Issue 21, 2017, Pages 82-103 | ||
| Author | ||
| Salima Baji Abdullah | ||
| Abstract | ||
| Image Authentication verifies the originality of an image by detecting malicious manipulations. In this proposed system used fragile watermarks for image authentication by creating marks based on self-similarities blocks properties of fractals encoding , (used in image compression), The created marks are depend on the characteristics of the image, so each image has its own watermarks which defers from other watermarks of other images therefore its very difficult to discover the watermark. Then we select the best one which has high randomization of similarity and dissimilarity of blocks through the use of statistical randomization tests. After the mark has been selected we hid it in blocks of image, one bit in each block by using LSB. Result of hiding is the marked image. The decision on whether an image is altered or not can be made by extracting hidden mark and comparing it with recreated one. In our research we can detect any change to an image as well as localizing the area that have been altered. From the practical application and the results of the algorithm, the quality of the watermarked image is very high because the watermark effect at most one LSB of one pixel in each block. | ||
| Keywords | ||
| image | ||
|
Statistics Article View: 22 |
||