It can authenticate the possession of originality data that have embedded a secretinformation - watermarks.
它通過在原始數(shù)據(jù)中嵌入秘密信息──水印(watermarks)來證實該數(shù)據(jù)的所有權(quán)歸屬.
互聯(lián)網(wǎng)
Digital watermarks have also find its usage in secret communication communication counterwork.
數(shù)字水印技術(shù)在隱蔽通信及其對抗等領域中也具有非常重要的用途.
互聯(lián)網(wǎng)
For many digital image watermarks, geometric distortions are their weakness.
幾何變換攻擊一直是許多數(shù)字圖像水印的薄弱環(huán)節(jié).
互聯(lián)網(wǎng)
Dates, photo details and other EXIF information can be added as watermarks.
日期, 照片的細節(jié)和其他EXIF信息,可以增加一條,作為水印.
互聯(lián)網(wǎng)
The watermarks are robust against LSB and crop attack.
可以抵抗LSB攻擊和剪切攻擊.
互聯(lián)網(wǎng)
According to zero - watermarking, a zero - embedding algorithm for multiple watermarks was proposed based on wavelet and chaos.
摘要根據(jù)零水印概念, 提出一種基于小波和混沌的多重水印零嵌入算法.
互聯(lián)網(wǎng)
Following the synchronous valleys, the additive synchronous approach was adopted to locate the usable watermarks.
緊隨著各峽谷的是外同步技術(shù),用于確定可用水印.
互聯(lián)網(wǎng)
The original images and watermarks are transformed into a multi - frequent image to be embedded in watermark.
這種算法充分利用小波變換的特點,把原始圖象和水印分解成多頻段的圖象來嵌入水印.
互聯(lián)網(wǎng)
Security paper: Paper incorporating features , such as watermarks , etc, which make counterfeiting difficult.
保密紙: 有著難以仿制的特征, 如水印等的紙張.
互聯(lián)網(wǎng)
Artists and other creative professionals may consider using their work samples as watermarks.
藝術(shù)家或者其他有創(chuàng)意的專業(yè)人員可以嘗試使用他們的作品作為水印圖案.
互聯(lián)網(wǎng)
Experimental results show that the visually identical and the watermarks also successfully survive after many attacks.
實驗結(jié)果表明,算法在滿足一定的不可感知性的前提下,能夠有效地抵抗多種高強度的攻擊.
互聯(lián)網(wǎng)