资料压缩技术与应用- Dwt编码压缩- EZW编码压缩- SPIHT编码压缩-ch
上传时间： 2016-09-01
上传用户：阿四AIR
MATLAB(DCT+Dwt)图像数字水印的方案毕业论文,基于dct和Dwt的算法,有详细程序
上传时间： 2016-09-02
上传用户：杜莹12345
这是Dwt和IDwt的源码. 离散小波的原始程式。
上传时间： 2013-12-24
上传用户：hj_18
~~多种变换的数字水印源码DCT Dwt
上传时间： 2013-12-31
上传用户：zwei41
一种基于Dwt数字水印的嵌入算法,直接可用!快快下载
上传时间： 2013-12-24
上传用户：dapangxie
stegenogrpahy in matlab based on Dwt
标签： stegenogrpahy matlab based Dwt
上传时间： 2014-12-03
上传用户：Amygdala
Dwt in matlab platform
上传时间： 2017-03-25
上传用户：yzhl1988
好的水印的matlab dct,Dwt代码,
上传时间： 2017-03-26
上传用户：miaochun888
The double-density Dwt is an improvement upon the critically sampled Dwt with important additional properties: (1) It employs one scaling function and two distinct wavelets, which are designed to be offset from one another by one half, (2) The double-density Dwt is overcomplete by a factor of two, and (3) It is nearly shift-invariant. In two dimensions, this transform outperforms the standard Dwt in terms of denoising however, there is room for improvement because not all of the wavelets are directional. That is, although the double-density Dwt utilizes more wavelets, some lack a dominant spatial orientation, which prevents them from being able to isolate those directions.
标签： double-density improvement additional critically
上传时间： 2017-04-03
上传用户：dongbaobao
代码利用Dwt算法实现了电子水印技术。 其中包括了水印的插入，提取，以及4种不同的攻击。最后，测量了psnr
上传时间： 2017-05-05
上传用户：Divine
