| Abstract |
| The importance of copyright about visual creation as a new technology in the area of visual design and image archiving is emphasizing rapidly. Especially, due to the characteristics of easy duplication and modification of digital contents such as visual design, it is necessary to develop a variety of techniques for various protection purposes such as ownership claiming and authentication.
To solve above problems, the watermarking technique is one of the most concerned techniques and is solution about image ownership. But comprehension of watermarking and application is insufficient so far.
In this paper, to propose a good criterion of watermarking about 2D image creation, we will compare with DCT based method and DWT based method(the DCT is used for JPEG compression, the DWT is used for JPEG2000 compression).
For performance tests, we used one hundred images from several jenre such as photography, animation, graphic, and measured watermarking extraction after some attacks. And we measured image quality before and after watermark insertion.
This paper aims to support base for copyright troubles in design related creation works. |
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| Key Words |
| 워터마킹, 저작권보호, 디지털저작권관리, Watermarking, Copyright Protection, DRM |
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