资源简介
本资源是Matlab中小波分析工具箱,包含了Modwt(极大重叠离散小波变换等),来自2016版本的matlab,函数较为丰富
代码片段和文件信息
function [HC_CellHC_StrAll_CellMean_Len] = built_huffcode(COUNT)
%BUILT_HUFFCODE Huffman coding.
% [HC_CELLHC_STRALL_CELLMEAN_LEN] = BUILT_HUFFCODE(COUNT)
%
% COUNT is an array such that COUNT(I) gives the count for
% the Ith symbol to be coded.
%
% HC_CELL is a cell array such that HC_CELL{I} is a
% binary string which represants the code of the Ith symbol
% to be coded.
%
% HC_STR is a string which contains all the Huffman codes.
% The binary strings are separated by the symbol ‘2‘.
%
% ALL_CELL is a cell array such that:
% ALL_CELL{K1} contains a symbol number.
% ALL_CELL{K2} contains the corresponding binary string code.
% ALL_CELL{K3} contains the corresponding count.
%
% MEAN_LEN gives the mean value of length of the binary
% strings code.
%
% Examples:
% COUNT = round(100*rand(115))
% [HC_CellHC_StrAll_CellMean_Len] = built_huffcode(COUNT)
%
% COUNT = round(abs(25*randn(130)))
% [HC_CellHC_StrAll_CellMean_Len] = built_huffcode(COUNT)
% M. Misiti Y. Misiti G. Oppenheim J.M. Poggi 23-Jul-2001.
% Last Revision: 05-Apr-2008.
% Copyright 1995-2008 The MathWorks Inc.
nb_SYMB = length(COUNT);
B = [ (1:nb_SYMB)‘ COUNT(:)];
B(COUNT==0:) = [];
NB_True_CODE = size(B1);
All_Cell = num2cell(B);
while size(All_Cell1)>1
[dumidx] = sort(cat(1All_Cell{:2})); %#ok
All_Cell = All_Cell(idx:);
All_Cell{21} = {All_Cell{11} All_Cell{21}};
All_Cell{22} = All_Cell{12} + All_Cell{22};
All_Cell(1:) = [];
end
All_Cell{12} = ‘‘;
IH = 1;
while IH if iscell(All_Cell{IH1})
C = All_Cell{IH2};
All_Cell(end+1:) = {All_Cell{IH1}{1} [C‘1‘]}; %#ok
All_Cell(end+1:) = {All_Cell{IH1}{2} [C‘0‘]}; %#ok
All_Cell(IH:) = [];
else
IH = IH+1;
end
end
[dumidx] = sortrows(cat(1All_Cell{:1})1); %#ok
All_Cell_SORTED_C1 = All_Cell(idx:);
%---------------------------------------------
% Code sorted by length
% All_Cell_SORTED_C2 = sortrows(All_Cell2);
%---------------------------------------------
I = cat(1All_Cell_SORTED_C1{:1});
HC_Cell = cell(nb_SYMB1);
HC_Cell(I) = All_Cell_SORTED_C1(:2);
HC_Str = HC_Cell;
for k = 1:length(HC_Str) HC_Str{k} = [HC_Str{k} ‘2‘]; end
HC_Str = cat(2HC_Str{:});
if nargout>2
idx = cat(2All_Cell{:1});
B = num2cell(COUNT(idx))‘;
All_Cell(:3) = B;
if nargout>3
N = 0;
S = 0;
for k = 1:size(All_Cell1)
N = N + All_Cell{k3};
S = S + length(All_Cell{k2})*All_Cell{k3};
end
Mean_Len = S/N;
end
end
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 2668 2013-05-23 17:02 wavelet\compression\built_huffcode.m
文件 7108 2013-05-23 17:02 wavelet\compression\bwc_algo.m
文件 430 2013-05-23 17:03 wavelet\compression\def_tmpfile.m
文件 540 2008-05-09 17:05 wavelet\compression\exp_compRat_aswdr_BW.mat
文件 569 2008-05-09 17:05 wavelet\compression\exp_compRat_aswdr_COL.mat
文件 524 2008-05-09 17:05 wavelet\compression\exp_compRat_ezw_BW.mat
文件 568 2008-05-09 17:05 wavelet\compression\exp_compRat_ezw_COL.mat
文件 6371 2008-05-09 17:05 wavelet\compression\exp_compRat_gbl_f.mat
文件 8355 2008-05-09 17:05 wavelet\compression\exp_compRat_gbl_h.mat
文件 6501 2008-05-09 17:05 wavelet\compression\exp_compRat_lvl.mat
文件 31421 2008-05-09 17:05 wavelet\compression\exp_compRat_lvl_BIS.mat
文件 523 2008-05-09 17:05 wavelet\compression\exp_compRat_spiht_3d_BW.mat
文件 548 2008-05-09 17:05 wavelet\compression\exp_compRat_spiht_3d_COL.mat
文件 520 2008-05-09 17:05 wavelet\compression\exp_compRat_spiht_BW.mat
文件 567 2008-05-09 17:05 wavelet\compression\exp_compRat_spiht_COL.mat
文件 534 2008-05-09 17:05 wavelet\compression\exp_compRat_stw_BW.mat
文件 572 2008-05-09 17:05 wavelet\compression\exp_compRat_stw_COL.mat
文件 534 2008-05-09 17:05 wavelet\compression\exp_compRat_wdr_BW.mat
文件 583 2008-05-09 17:05 wavelet\compression\exp_compRat_wdr_COL.mat
文件 4792 2013-05-23 17:03 wavelet\compression\getcompresspar.m
文件 594 2013-05-23 17:03 wavelet\compression\getsizes.m
文件 3263 2013-05-23 17:03 wavelet\compression\modify_wtcfile.m
文件 598 2013-10-04 09:26 wavelet\compression\psnr_mse_maxerr.m
文件 2782 2013-05-23 17:03 wavelet\compression\significant_map.m
文件 1702 2013-05-23 17:03 wavelet\compression\test_step_by_step.m
文件 51850 2013-08-21 17:01 wavelet\compression\wc2dtool.fig
文件 89762 2013-06-30 11:13 wavelet\compression\wc2dtool.m
文件 916 2013-05-23 17:03 wavelet\compression\wcfs2mat.m
文件 19556 2013-05-23 17:03 wavelet\compression\wcompress.m
文件 1963 2013-05-23 17:03 wavelet\compression\wconvimg.m
............此处省略1147个文件信息
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