文件名称:用bandelet进行图像分割的matlab代码

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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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下载文件列表

压缩包 : 用bandelet进行图像分割的matlab代码.rar 列表
bandelet_segmentation
bandelet_segmentation/BandeletsTutorial.pdf
bandelet_segmentation/barb.gif
bandelet_segmentation/circle.png
bandelet_segmentation/circle_32.png
bandelet_segmentation/circle_64.png
bandelet_segmentation/compute_best_direction.m
bandelet_segmentation/compute_quadtree.asv
bandelet_segmentation/compute_quadtree.m
bandelet_segmentation/compute_wavelet_quadtree.m
bandelet_segmentation/convert_wavelets2list.m
bandelet_segmentation/CVS
bandelet_segmentation/CVS/Entries
bandelet_segmentation/CVS/Entries.Extra
bandelet_segmentation/CVS/Repository
bandelet_segmentation/CVS/Root
bandelet_segmentation/dichotomic_grouping.m
bandelet_segmentation/func_DWT.asv
bandelet_segmentation/func_DWT.m
bandelet_segmentation/func_Main.asv
bandelet_segmentation/func_Main2.asv
bandelet_segmentation/func_Main2.m
bandelet_segmentation/func_Main3.asv
bandelet_segmentation/func_Main3.m
bandelet_segmentation/func_Main4.asv
bandelet_segmentation/func_Main4.m
bandelet_segmentation/func_Mywavedec2.asv
bandelet_segmentation/func_Mywavedec2.m
bandelet_segmentation/images
bandelet_segmentation/LENA.BMP
bandelet_segmentation/load_image_small_square.m
bandelet_segmentation/Main4.m
bandelet_segmentation/na.bmp
bandelet_segmentation/na_128.bmp
bandelet_segmentation/new2.bmp
bandelet_segmentation/new2_1.bmp
bandelet_segmentation/new2_64.bmp
bandelet_segmentation/new3.bmp
bandelet_segmentation/new4.bmp
bandelet_segmentation/new4_128.bmp
bandelet_segmentation/new4_256.bmp
bandelet_segmentation/new4_32.bmp
bandelet_segmentation/new4_64.bmp
bandelet_segmentation/perform_alpert_transform_2d.m
bandelet_segmentation/perform_bandelet_transform.m
bandelet_segmentation/perform_moment_transform_slow.m
bandelet_segmentation/perform_warped_wavelet.asv
bandelet_segmentation/perform_warped_wavelet.m
bandelet_segmentation/perform_warping.m
bandelet_segmentation/perform_wavelet_bandelet_transform.m
bandelet_segmentation/perform_wavelet_transform.m
bandelet_segmentation/plot_geometry.m
bandelet_segmentation/plot_quadtree.m
bandelet_segmentation/plot_wavelet_quadtree.m
bandelet_segmentation/reverse.m
bandelet_segmentation/rev_sort_abs.m
bandelet_segmentation/segmentation.asv
bandelet_segmentation/segmentation.m
bandelet_segmentation/test_compression.asv
bandelet_segmentation/test_compression.m
bandelet_segmentation/test_quadtree.asv
bandelet_segmentation/test_quadtree.m
bandelet_segmentation/test_reordering.m
bandelet_segmentation/test_single_square.asv
bandelet_segmentation/test_single_square.m
bandelet_segmentation/test_speed.m
bandelet_segmentation/test_wavelet_quadtree.m
bandelet_segmentation/toolbox
bandelet_segmentation/toolbox/compile_mex.m
bandelet_segmentation/toolbox/compute_quadrant_selection.m
bandelet_segmentation/toolbox/evaluate_nbr_bits_wavelets.m
bandelet_segmentation/toolbox/images
bandelet_segmentation/toolbox/keep_above.m
bandelet_segmentation/toolbox/keep_biggest.m
bandelet_segmentation/toolbox/l2error.m
bandelet_segmentation/toolbox/load_image.m
bandelet_segmentation/toolbox/mex
bandelet_segmentation/toolbox/mex/bandelet.sln
bandelet_segmentation/toolbox/mex/config.h
bandelet_segmentation/toolbox/mex/perform_haar_transform.cpp
bandelet_segmentation/toolbox/mex/perform_haar_transform.def
bandelet_segmentation/toolbox/mex/perform_haar_transform.h
bandelet_segmentation/toolbox/mex/perform_haar_transform.suo
bandelet_segmentation/toolbox/mex/perform_haar_transform.vcproj
bandelet_segmentation/toolbox/perform_haar_transform.dll
bandelet_segmentation/toolbox/perform_haar_transform_slow.m
bandelet_segmentation/toolbox/perform_quantization.m
bandelet_segmentation/toolbox/plot_wavelet.m
bandelet_segmentation/toolbox/psnr.m
bandelet_segmentation/toolbox/reorder_coefs.m
bandelet_segmentation/toolbox/rescale.m
bandelet_segmentation/vision_1.asv
bandelet_segmentation/vision_1.m

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