所以这个滤波器称为内插滤波器(interpolation filter), 又称抗镜像滤波器(anti-image filter)。 这样,增采样问题就变成怎样设计内插滤波器的问题了。
基于1个网页-相关网页
Use singular value decomposition (SVD) in the watermark algorithm may enhance the anti-geometry distortion of the image, but it is very weak to some attacks such as salt, gauss, filter and etc.
在水印算法中用奇异值分解可以提高图像的抗几何失真性,但它对椒盐、高斯、滤波等攻击的抵抗能力却很弱。
This system can be used in hologram producing, color image transform, optical image encryption, filter producing, optical anti-counterfeiting and other fields.
该技术可应用于全息图制作、彩色图像变换、光学图像加密、滤波器的制作、光学防伪等领域。
应用推荐