This directory includes matlab interface of the curvelet transform using usfft. Basic functions fdct_usfft.m -- forward curvelet transform afdct_usfft.m -- adjoint curvelet transform ifdct_usfft.m -- inverse curvelet transform fdct_usfft_param.m -- returns the location of each curvelet in phase-space Useful tools fdct_usfft_dispcoef.m -- returns a matrix contains all curvelet coefficients fdct_usfft_pos2idx.m -- for fixed scale and fixed direction, returns the curvelet which is closest to a certain point on the image Demos fdct_usfft_demo_basic.m -- display the shape of a curvelet fdct_usfft_demo_recon.m -- partial reconstruction using curvelet fdct_usfft_demo_disp.m -- display all the curvelet coefficients of an image fdct_usfft_demo_denoise.m -- image denoising using curvelet
标签： directory functions interface transform
上传时间： 2016-08-31
上传用户：cooran
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
贝叶斯阈值方法实现图像去噪，对文献Chang.adaptive wavelet thresholding for image denoising and compression仿真结果。-Bayesian threshold method of image denoising。
标签： 小波 图像处理
上传时间： 2016-04-25
上传用户：shiaijianjun
OpenCV实现中值滤波视频去噪，效果还行，仅供大家学习交流，欢迎评论！ -The OpenCV achieve the median filtering video denoising effect, we only learn exchanges are welcome to comment!
上传时间： 2016-04-25
上传用户：shiaijianjun
