資源簡介
shearlet變換的matlab代碼。
圖像經過某種離散變化后的能力分布體現了圖像的變換特征,從無失真壓縮的角度考慮,變換的目的是希望圖像經離散變換后能力盡可能的集中在少量的幾個系數中,即具有能量聚集性,由此可得到較高的壓縮比。
圖像經過Shearlets變換后,能量的分布會隨著變換尺度n的變換尺度呈現出一定的規律。
圖像經過某種離散變化后的能力分布體現了圖像的變換特征,從無失真壓縮的角度考慮,變換的目的是希望圖像經離散變換后能力盡可能的集中在少量的幾個系數中,即具有能量聚集性,由此可得到較高的壓縮比。
圖像經過Shearlets變換后,能量的分布會隨著變換尺度n的變換尺度呈現出一定的規律。
代碼片段和文件信息
%?Contents?
%
%
%?2D:?With?the?methods?in?this?folder?you?can
%???????-?construct?different?2D?shearlet?systems
%???????-?compute?2D?shearlet?transforms
%???????-?compute?2D?shearlet?reconstructions
%
%?3D:?With?the?methods?in?this?folder?you?can
%???????-?construct?different?3D?shearlet?systems
%???????-?compute?3D?shearlet?transforms
%???????-?compute?3D?shearlet?reconstructions
%
%?Complex:?With?the?methods?in?this?folder?you?can
%???????-?construct?2D?complex?shearlet?system
%???????-?compute?2D?complex?shearlet?transforms
%???????-?compute?2D?complex?shearlet?reconstructions
%
%?Data:?This?folder?contains?the?images?and?videos?used?in?the?sample
%?scripts.
%
%?Examples:?This?folder?contains?several?sample?scripts?that?should?give
%?you?a?good?understanding?of?how?to?use?ShearLab?3D.
%
%?Quick:?This?folder?contains?a?simple?method?for?doing?the?shearlet
%?transform?hard?thresholding?and?the?reconstruction?in?just?one?step?for
%?2D?and?3D?data.
%
%?Util:?This?folder?contains?all?methods?used?in?ShearLab3D?that?are?of
%?little?use?on?their?own.
%
%?The?methods
%
%?-?dfilters?
%?-?dmaxflat
%?-?mctrans
%?-?modulate2
%
%?were?taken?from?the?Nonsubsampled?Contourlet?Toolbox?[1]?which?can?be?downloaded?from
%?http://www.mathworks.de/matlabcentral/fileexchange/10049-nonsubsampled-contourlet-toolbox.
%
%?The?methods
%
%?-?MakeONFilter
%?-?MirrorFilt
%
%?were?taken?from?WaveLab850?(http://www-stat.stanford.edu/~wavelab/).
%
%
%?UtilCUDA:?This?folder?contains?one?CUDA-Kernel?needed?for?the?construction?of
%?3D?shearlets.
%
%
%?Changes?in?version?1.01
%
%?-?SLgetWedgeBandpassAndLowpassFilters2D:?2D?directional?filters?don‘t
%???have?to?be?equally?sized?anymore.?
%
%?Changes?in?version?1.1
%
%?-?Fixed?references?to?Nonsubsampled?Contourlet?Toolbox?and?WaveLab850
%?-?Replaced?dyadup?with?SLupsample
%?-?Removed?dependencies?on?Signal?Processing?Toolbox?and?Image?Processing?Toolbox?
%?-?Added?Complex?Shearlet?Transform
%?-?Automatic?reselection?of?filters?if?data?is?too?small?for?specified?shearlet?system
%
%
%
%?For?more?details?see:?“ShearLab?3D:?Faithful?Digital?Shearlet?Transforms?based?on?Compactly?Supported?Shearlets“
%
%
%?[1]?A.?L.?da?Cunha?J.?Zhou?M.?N.?Do?“The?Nonsubsampled?Contourlet?Transform:?Theory?Design?and?Applications“?IEEE?Transactions?on?Image?Processing?2005.
%
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-05-02?17:10??ShearLab3Dv11\
?????文件???????37167??2014-11-09?17:47??ShearLab3Dv11\licenseGPL30.m
?????文件????????2701??2016-05-02?17:10??ShearLab3Dv11\copyright.m
?????文件????????2394??2014-11-11?01:49??ShearLab3Dv11\contents.m
?????目錄???????????0??2016-05-02?17:19??ShearLab3Dv11\UtilCUDA\
?????文件?????????914??2016-05-02?17:19??ShearLab3Dv11\UtilCUDA\SLgetShearlet3DCUDA.cu
?????文件????????5813??2014-08-23?07:36??ShearLab3Dv11\UtilCUDA\SLgetShearlet3DCUDA.ptx
?????目錄???????????0??2016-05-02?17:17??ShearLab3Dv11\Util\
?????文件????????1312??2016-05-02?17:17??ShearLab3Dv11\Util\SLupsample.m
?????文件????????5981??2016-05-02?17:17??ShearLab3Dv11\Util\SLprepareFilters3D.m
?????文件????????5893??2016-05-02?17:17??ShearLab3Dv11\Util\SLprepareFilters2D.m
?????文件????????1215??2016-05-02?17:17??ShearLab3Dv11\Util\SLpadArray.m
?????文件????????1062??2016-05-02?17:17??ShearLab3Dv11\Util\SLnormalizeCoefficients3D.m
?????文件????????1058??2016-05-02?17:17??ShearLab3Dv11\Util\SLnormalizeCoefficients2D.m
?????文件????????7458??2016-05-02?17:17??ShearLab3Dv11\Util\SLgetWedgeBandpassAndLowpassFilters2D.m
?????文件????????8941??2016-05-02?17:17??ShearLab3Dv11\Util\SLgetShearlets3D.m
?????文件????????5471??2016-05-02?17:17??ShearLab3Dv11\Util\SLgetShearlets2D.m
?????文件????????1466??2016-05-02?17:17??ShearLab3Dv11\Util\SLfiltersToGPU3D.m
?????文件????????1832??2016-05-02?17:17??ShearLab3Dv11\Util\SLfiltersToGPU2D.m
?????文件?????????961??2016-05-02?17:17??ShearLab3Dv11\Util\SLdshear.m
?????文件?????????669??2016-05-02?17:17??ShearLab3Dv11\Util\SLcomputeSNR.m
?????文件?????????827??2016-05-02?17:16??ShearLab3Dv11\Util\SLcomputePSNR.m
?????文件????????5004??2016-05-02?17:16??ShearLab3Dv11\Util\SLcheckFilterSizes.m
?????文件?????????921??2014-11-09?18:14??ShearLab3Dv11\Util\modulate2.m
?????文件?????????713??2014-11-09?18:15??ShearLab3Dv11\Util\MirrorFilt.m
?????文件????????1005??2014-11-09?18:13??ShearLab3Dv11\Util\mctrans.m
?????文件???????10472??2014-11-09?18:15??ShearLab3Dv11\Util\MakeONFilter.m
?????文件????????2753??2014-11-09?18:13??ShearLab3Dv11\Util\dmaxflat.m
?????文件???????13383??2014-11-10?23:50??ShearLab3Dv11\Util\dfilters.m
?????目錄???????????0??2016-05-02?17:16??ShearLab3Dv11\Quick\
?????文件????????3870??2016-05-02?17:16??ShearLab3Dv11\Quick\SLQdecThreshRec.m
............此處省略48個文件信息
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