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ch09_JPEG2000
- 从子带编码到小波编码 子带编码 多分辨率分析 滤波器组与多分辨率 从子带编码到小波编码 小波分解图像方法 失真的度量方法 JPEG2000介绍-from subband coding to wavelet encoding subband coding multiresolution analysis filters with a resolution from the subband coding of wavelet image coding wavelet de
wm3two
- 将相同尺寸的灰度图象和2值图像进行2级小波分解，在前者的细节子带嵌入分解后的2值图像的数字水印程序-of the same size and gray-scale image of two binary images for two wavelet decomposition, details of the former subband decomposition embedded value after the two images of digital watermarking proced
B2193AED
- 一种新的图像脆弱水印算法李亚琴 ，孙星明 ，杨恒伏(1．苏州市职业大学，江苏苏州215104；2．湖南大学计算机与通信学院，湖南长沙410082)摘要：提出一种基于小波变换和QR分解的图像脆弱水即方法。嵌入水印时，首先对原始图像进行三级小波分解，然后提取第三级低频子带的边缘特征，同时对此边缘特征和第三级垂直高频子带进行QR分解，用边缘特征的一部分分解结果替换垂直高频子带分解结果的相应部位来嵌入水即，最后进行小波逆变换得到嵌入水印的图像。图像认证时，首先对观测图像进行三级小波分解，第三级垂直高频子
KuaiSuXiaoBoSuanFa
- 基于子带编码的快速小波变换算法-subband coding based on the fast wavelet transform algorithm
shuzishuiyin
- 利用小波变根据二进制数（水印）来改变图片，提取其中一个子带的直方图 -using wavelet under binary variable (Watermark) to change the picture, an extract of which the histogram subband
Image_Denoising_using_Wavelet_Thresholding
- 使用小波进行图像去噪的论文。 This paper proposes an adaptive threshold estimation method for image denoising in the wavelet domain based on the generalized Guassian distribution (GGD) modeling of subband coefficients.
code
- 数字水印Linux系统下的实现 Peter Meerwald Dept. of Scientific Computing, University of Salzburg-Watermarking source version 0.4 * bug fixes - wm_xia_{e|d}.c variable level uninitialized - wm_zhu_{e|d}.c variable level uninitialized
1
- Cognitive radio frequency spectrum detection-The spectrum sensing of a wideband frequency range is studied by dividing it into multiple subbands. It is assumed that in each subband either a primary user (PU) is active or absent in a additive white
dfbrec_l
- DFBREC_L Directional Filterbank Reconstruction using Ladder Structure x = dfbrec_l(y, fname) Input: y: subband images in a cell vector of length 2^n f: filter in the ladder network structure, can be a string naming a stan
backsamp
- BACKSAMP Backsampling the subband images of the directional filter bank y = backsamp(y) Input and output are cell vector of dyadic length This function is called at the end of the DFBDEC to obtain subband images with overall
Multifocusimage
- 提出了一种基于第二代曲波变换的多聚焦图像融合方法。将两幅源多聚焦图像分别进行第二代曲波变换分解，得到各自的低频 子带系数和各带通方向子带系数；采用一定的融合规则对曲波变换系数进行组合得到融合图像的曲波系数；最后对得到的曲波系数进行曲波 重构得到融合图像。实验结果表明，该方法的融合效果明显优于常见的融合方法-Proposed a second generation curvelet transform based multi-focus image fusion method. Two m
subband-filtering
- subband filtering c++ source
Wavelets-and-Subband-Coding
- Wavelets and Subband Coding
a-subband--adaptive-threshold-
- 基于变换域子带自适应迭代阈值，用于图像去噪方面的文章-A Subband Adaptive Iterative Shrinkage/Thresholding Algorithm
dabu
- The fn will calculated subband energes as given in the att tech paper of ruhi sarikaya and others. the fn also calculates the DCT part. using this fn and other algo for pattern classification(VQ,GMM) speaker identification could be achived. the progr
first-generation-Curvelet-
- 第一代curvelet变换，包括子带分解、平滑分区、重正规化、脊波变换等，再逆变换实现。-The first generation curvelet transform, including the subband decomposition, smooth partition, renormalization, the ridgelet transform and then inverse transform.
Contourlet
- contourlet变换工具包其中的denoisedemo2为自己加入contourlet变换显示子带的系数矩阵-contourlet transform subband coefficients associated display
NSCTPCNN
- 提出了一种新的基于非下采样轮廓波ＮＳＣＴ和脉冲耦合神经网络ＰＣＮＮ相结合的自适应图像融合方法．对已经配准的源图像进行ＮＳＣＴ分解得到低频子带系数和不同方向的高频子带系数．对ＮＳＣＴ分解的低频部分采用简单的加权平均融合规则-Proposed a new profile based on non-downsampling wave NSCT and PCNN PCNN combining adaptive image fusion method. Which has been the source
hdr_code
- 高动态范围图像压缩算法。Dynamic range compression with subband architectures. -Dynamic range compression with subband architectures. The main function for range compression ("range_compression.m") It takes as input a grayscale or a color high dynamic range
Infrared-Image-Enhancement
- 针对基于小波变换的红外图像增强方法视觉效果不够理想的缺点, 提出了一种基于平稳小波变换和Retinex 的红外图像增强方法, 利用Retinex 增强算法增强图像的视觉效果, 并改善其亮度均匀性。首先, 对红外图像经平稳小波变换后的最大尺度低频子带图像进行多尺度Retine x 增强 然后, 利用贝叶斯萎缩阈值法对高频子带图像进行阈值去噪, 并根据低频子带图像的局部对比度和模糊规则计算高频子带的增益系数, 从而得到增强后的高频子带图像 最后, 由低频子带图像和高频子带图像重构得到增强后的图像。针