Attacks on Digital Watermarking and its Impacts Using Various Codes |
Author(s): |
| HARSHIL.B.JANI , INDUS UNIVERSITY |
Keywords: |
| DCT, additive noise and JPEG compression, Viterbi Algorithm |
Abstract |
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This paper discusses a new method of watermarking digital images by using convolutional codes to improve detection. The watermarks are coded, interleaved, and then embedded into the DCT coefficients of an image. Detection is performed by first extracting the DCT coefficients of the watermarked image. Then the sequence is deinterleaved and decoded using the Viterbi Algorithm. This watermarking method is compared to another scheme that does not use coding. The watermarked images are added with noise, compressed, and resized to simulate attempts to remove the watermark. Convolutional codes in watermarks prove to be robust to additive noise and JPEG compression, but vulnerable to image resizing. Different attacks which is encountered on it. |
Other Details |
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Paper ID: IJSRDV3I2392 Published in: Volume : 3, Issue : 2 Publication Date: 01/05/2015 Page(s): 443-447 |
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