數字信宿 的英文怎麼說
中文拼音 [shǔzìxìnxiǔ]
數字信宿
英文
digital sink-
In chapter 2, a general digital watermarking frame is presented, including the generation, embedding and detection of watermark. in chapter 3, the concept of watermarking channel is presented, the modes of watermarking channel and image dct coefficients is proposed, the capacity of watermarking channel is evaluated by embedding watermarks to selected still image dct coefficients in direct spread spectrum. in chapter 4, a watermarking algorithms based wavelet multi - resolution is presented, by conjunction with human visual model, it keeps invisibility of watermark in host image and need not original image during detection
數字水印是一種新的數字媒體保護技術，它是將特定的信息（如版權信息、秘密消息等）嵌入到圖象、語音、視頻等各種數字媒體中，以達到版權保護等目的，同時，這種信息對宿主媒體的影響不足以引起人們的注意且有特定的恢復方法，此信息對非法接收者應該是不可見的，本文主要對數字水印的一般框架，靜止圖象dct系數的理論容量，圖象水印的嵌入和檢測，數字媒體防篡改以及數字水印的攻擊等問題進行了研究，提出了兩個新的水印算演算法。If the digital signature is valid, the trusted application domain host passes the signature information as evidence to the runtime s policy mechanism
如果數字簽名有效，則受信任的應用程序域宿主將簽名信息作為證據傳遞給運行庫的策略機制。In recent years, some new concepts of information security have been proposed, especially in the application of intellectual property right protection, copyright protection and tamper - proofing. information hiding and digital watermarking are new measures of digital media protection, which are processes of embedding hidden messages within digital media such as text, images, video and audio. the hidden messages could be copyright information, user distributor identification number, company logo, personal signature, control bits, or any information considered useful for a specific application
信息隱藏與數字水印技術就是一種新的數字媒體保護措施，它是將特定的信息（如版權信息、秘密消息等）嵌入到圖像、語音、視頻及文本文件等各種數字媒體中，以達到標識、注釋及版權保護等目的，同時，這種信息對宿主媒體的影響不足以引起人們的注意且具有特定的恢復方法，此信息對非法接收者應該是不可見、不可察覺的。
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