A blind watermarking technique based on DCT psychovisual threshold for a robust copyright protection
This work presents a blind watermarking technique based on a psychovisual threshold for a robust copyright protection. Psychovisual threshold can provide a trade-off between imperceptibility and robustness of the watermark. This paper proposes a new watermarking scheme where watermarks are embedded...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IEEE
2018
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/21132/ http://umpir.ump.edu.my/id/eprint/21132/ http://umpir.ump.edu.my/id/eprint/21132/1/08356354.pdf |
| Summary: | This work presents a blind watermarking technique based on a psychovisual threshold for a robust copyright protection. Psychovisual threshold can provide a trade-off between imperceptibility and robustness of the watermark. This paper proposes a new watermarking scheme where watermarks are embedded on some selected coefficients of DCT frequencies considering psychovisual threshold. The embedding regions are determined using a modified entropy to indicate less distortion areas. Furthermore, the watermark image is scrambled before embedding to provide additional security. The proposed scheme is tested under different types of signal-processing and geometric attack. The experimental results show that our scheme produces higher imperceptibility and robustness of the watermark than the existing schemes. |
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