Watermarking Citra Digital Menggunakan Teknik Amplitude Modulation
| Main Authors: | Tjiharjadi, Semuil; Universitas Kristen Maranatha, ., Sanwill; Universitas Kristen Maranatha |
|---|---|
| Format: | application/octetstream eJournal |
| Bahasa: | ind |
| Terbitan: |
Universitas Kristen Maranatha
, 2011
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| Online Access: |
http://majour.maranatha.edu/index.php/jurnal-informatika/article/view/255 |
Daftar Isi:
- Watermarking is a way to save some information into other digital data and the existences of information cannot be realized by human sense. It can also survive from digital signal processing in adequate processing. There are some applications of watermarking, for examples Broadcast Monitoring, Owner Identification, Proof of Ownership, Authentication, Fingerprinting, Copy control and Covert Communication. Some techniques, which have already been developed, are LSB, Amplitude Modulation, Patchwork, Spread Spectrum etc. This report will describe the Bitmap image format, the concept of watermarking, the concept of watermarking using Amplitude Modulation technique, the realization of watermarking concept through a watermarking program, and the test results of the program. Through some tests, which have been done to the digital image watermarking program using amplitude modulation technique, it can be concluded that the program has been realized successfully. The test also shows that the increment of the value of q, make the ability of program to identify the characters, which were watermarked, to the image become better.