visual masking

基本解釋

A digital watermarking method utilizing human visual masking was proposed in this paper.
本文提出了一種利用人類視覺掩蓋效應(yīng)的數(shù)字水印技術(shù)。
Aiming at different quality effects on different image region and distortion type, we take full advantage of the visual masking effect and proposed a new weighted idea.
充分利用人眼視覺掩蓋效應(yīng)，針對不同的失真類型對于圖像不同的內(nèi)容具有不同的質(zhì)量影響，提出了一種新的加權(quán)策略。
A visual masking model is presented by analyzing the human visual characteristics, then embeds watermark in the typical image of "Lena" by low frequency coefficient of DCT.
通過分析人的視覺特性提出一種視覺掩蓋模型，得到該模型水印嵌入算法和水印檢測算法。

視覺掩蔽
A visual masking function is used to modify the digital signature to assure the perceptual quality of the watermarked image.
用一個視覺掩蔽函數(shù)來修改水印圖像,保證了嵌入水印后的宿主圖像的視覺質(zhì)量。
視覺掩蓋
In the proposed method,the SSIM values are calculated with the different weighted values fused visual characteristics including contrast sensitivity,multi-channel structure,visual masking and so on.
該方法是在結(jié)構(gòu)相似(SSIM)方法基礎(chǔ)之上,融合了人眼幾個主要視覺特性,如對比敏感度、多通道、視覺掩蓋、視覺非線性等。
掩蔽效應(yīng)
視覺屏蔽

視覺掩蓋
A digital watermarking method utilizing human visual masking was proposed in this paper. First, the spread spectrum technique was introduced to generate watermark sequences, which enhance the watermark robustness.
本文提出了一種利用人類視覺掩蓋效應(yīng)的數(shù)字水印技術(shù)。
視覺屏蔽