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Description: 源代码 contourlet
用于图像处理 程序
Platform: |
Size: 536845 |
Author: 孟会晓 |
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Description: bandelets_toolbox可以运用到bandelets变化中，源码公开
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Size: 727932 |
Author: 超 |
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Description: A Matlab Tour of Second Generation Bandelets
附有每部分代码的说明
function x = perform haar transform(x, dir);
x = x(:); % to be sure we have a column vector
J = floor( log2(length(x)) ); % number of scales
if dir==1 % forward transform
for j=1:J
c = x(1:2?j-1):end); % previous coarse signal
x(1:2苆:end) = ... % new coarse signal
( c(1:2:end) + c(2:2:end) )/sqrt(2);
x(1+2?j-1):2苆:end) = ... % new details
(c(1:2:end)-c(2:2:end))/sqrt(2);
end
else % backward transform
for j=J:-1:1
y = x(1:2?j-1):end);
x(1:2苆:end) = ...
( y(1:2:end) + y(2:2:end) )/sqrt(2);
x(1+2?j-1):2苆:end) = ...
( y(1:2:end) - y(2:2:end) )/sqrt(2);
end
end
Listing 1: Function perform haar transform
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Size: 1072152 |
Author: wuda5566@sina.com |
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Description: contourlet变换源代码,图象处理方面有广泛应用空间-MATLAB source code that implements the contourlet transform and its utility functions. See paper "The contourlet transform: an efficient directional multiresolution image representation" included in this zip file. -Contourlet transform source code, image processing has a broad application of space-MATLAB source code that implements the contourlet transform and its utility functions. See paper
Platform: |
Size: 1494016 |
Author: jason.. |
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Description: 源代码 contourlet
用于图像处理 程序-Contourlet source code for image processing procedures
Platform: |
Size: 536576 |
Author: 孟会晓 |
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Description: bandelets_toolbox可以运用到bandelets变化中，源码公开-bandelets_toolbox can be used to bandelets changes, open-source
Platform: |
Size: 728064 |
Author: 超 |
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Description: 由于第二代Bandelets变换是由量化步长来控制最佳Bandelet化过程，难以实现定码率图像压缩。为了解决这个问题，提
出了一种通过非线性逼近来控制最佳Bandelet化过程的方法。同时采用了沿几何流的方向小渡变换方法，直接把JPEG2000的编
解码器应用到Bandelets变换系数上进行有效的图像压缩，而无需重新构造上下文模型。实验表明，提出的压缩方法具有很好的边
缘和纹理保护能力，特别对于直线纹理图像，压缩性能优于JPEG2000标准。-Abstract：Image compression based on the second generadon Bandelets transform，whose optimized bandeletization is controlled
by quantization step，cannot realize fixed bitrate image compression．To overconae this problem。the paper presents a non-linear
approximation method to control the optimized bandeletization．Then，the oriented wavelet transform along geometric flow is adopted．
The JPEG2000 codec is direcdy employed on bandelets coefficients to implement effective image compression without changing
context model．Experiments show that the proposed compression method exceeds JPEG2000 standard in compression performance
and abil畸of image edges and texture preservation．
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Size: 319488 |
Author: lx |
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Description: This is an implementation of the Bandelets Transform for image processing purposes
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Size: 210944 |
Author: Ali |
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Description: In this letter,we propose a new image compression method that combines image decomposition,wavelets and 2G bandelets together.-此资料中，我们提出了一种新的图像压缩的方法，就是把图像压缩，小波变换和第二代班德变换结合起来。
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Size: 817152 |
Author: 周倩倩 |
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Description: 多尺度几何分析工具之一的bandlet的实现，里面还有一些例子，可直接用来开发-Multiscale geometric analysis tool, one of the bandlet implementation, there is also some examples, can be directly used to develop
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Size: 57344 |
Author: 吴京 |
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Description: 平移不变bandelets去噪程序包,具有自适应性和较多的可选方向，可用于图像的去噪，具有较好的效果-Translation invariant denoising bandelets package, and more with the optional adaptive direction, can be used for image denoising, with good results
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Size: 2889728 |
Author: zhangwenge |
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Description: 利用Bandelets变换的电子探针图像融合优化算法研究-Using electron probe Bandelets transform image fusion algorithm research
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Size: 791552 |
Author: dig |
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Description: The second generation bandelets [Peyr´ e and Mallat 2005c] is a orthogonal multiscale transform that is able to capture thegeometric content of images and surfaces.
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Size: 220160 |
Author: z |
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Description: Sparse geometric image representations with bandelets
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Size: 2744320 |
Author: li |
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