| Image Watermarking Method Using Integer-to-Integer Wavelet Transforms |
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| 作者姓名： | 陈韬 王京春 |
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| 作者单位： | CHEN Tao，WANG Jingchun Department of Automation，Tsinghua University，Beijing 100084，China; National Laboratory of Pattern Recognition，Beijing 100080，China |
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| 摘 要： | IntroductionThe rapid growth of Internetdistribution of digitalimages and videos has created an urgent need forcopyright protection against pirating. Digitalwatermarking has been proposed as a method toembed an invisible signal into multimedia data toidentify the owner of the data and to discourageunauthorized copying15] .The watermark shouldbe undeletable,perceptually invisible,statisticallyundetectable and resistant to lossy datacompression and common signal processingoperations. Various …
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Image Watermarking Method Using Integer-to-Integer Wavelet Transforms |
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| Abstract: | Digital watermarking is an efficient method for copyright protection for text, image, audio, and video data. This paper presents a new image watermarking method based on integer-to-integer wavelet transforms. The watermark is embedded in the significant wavelet coefficients by a simple exclusive OR operation. The method avoids complicated computations and high computer memory requirements that are the main drawbacks of common frequency domain based watermarking algorithms. Simulation results show that the embedded watermark is perceptually invisible and robust to various operations, such as low quality joint picture expert group (JPEG) compression, random and Gaussian noises, and smoothing (mean filtering). |
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| Keywords: | digital watermark data hiding steganography integer-to-integer wavelet transform |
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