In recent years, digital watermarking has been widely used in copyright protection for digital images, audio, video and multimedia products.
近年来，数字水印技术开始广泛用于数字图像，音频，视频和多媒体产品的版权保护。
In recent years, digital watermarking has been widely used in copyright protection for digital image, audio, video or multimedia products.
近年来，数字水印技术已经广泛应用于数字图像、音频、视频等多媒体产品的版权保护。
To solve these kinds of problems, some people believe that it is useful to hide some information called watermark into the digital products for the purpose of copyright protection.
为此，人们考虑在数字化产品隐藏一些信息标识其作品身份，进行版权保护。 数字水印技术就是在这种情况下应运而生，且被认为是解决这一问题的有力工具。
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