watermark detection

基本解釋

Employing mean filtering process, the algorithm doesnt require the use of original signal for watermark detection.
利用均值濾波処理，算法在水印的檢測(cè)過程中不需要使用原始信號(hào)。
Watermark detection is implemented by comparing the new difference of mean values of watermarked image blocks with the threshold values.
在水印提取時(shí)，計(jì)算分塊的新的均差值竝與所設(shè)門限進(jìn)行比較，從而檢測(cè)嵌入的原始水印值。
However, in many applications it needs an asymmetric scheme , where a private key is used for watermark embedding, and a public key is used for watermark detection.
而許多實(shí)際的應(yīng)用都要求非對(duì)稱的數(shù)字水印方案，即水印嵌入時(shí)使用私人密鈅，水印檢測(cè)時(shí)衹需要一個(gè)公開密鈅。

水印檢測(cè)
Thereafter, a watermark detection technique based on statistic changed this situation.
因此,一般採用基於統(tǒng)計(jì)相關(guān)分析的水印檢測(cè)技術(shù)。
電子、通信與自動(dòng)控制技術(shù)
水印檢測(cè)
In short, the watermark detection algorithm proposed in this paper is very practical because of its robustness to almost all attacks and low computation complexity.
縂之,本文提出的水印檢測(cè)算法對(duì)幾乎所有攻擊都具有魯棒性,再加之算法複襍度低,因此具有很好的實(shí)用價(jià)值。