图像超分辨率处理

超分辨率图像处理，matlab源码，效果远远优于三次插值

function [SupResol] = SuperresCode（Low MFactor ColorProcMethod Model）

if nargin < 4
    load MatlabR2007aSupResModel.mat;
end
if nargin < 3
    ColorProcMethod = ‘L‘;
end

BoundarySize = 9;
warning off;
BiC = imresize（LowMFactor ‘bicubic‘）;
warning on;
BiC = padarray（BiC [BoundarySizeBoundarySize] ‘symmetric‘‘both‘）;
[SupResol] = SuperresMexInt（BiC MFactor ColorProcMethod Model）;
SupResol = SupResol（BoundarySize+1:end-BoundarySizeBoundarySize+1:end-BoundarySize:）;


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function [SupResol] = SuperresMexInt（BiC MFactor ColorProcMethod Model）

[IHeightIWidthColorDim] = size（BiC）;

if ColorDim > 1 %%% if color
    if ColorProcMethod == ‘C‘
    %%% proc. each RGB channel independently
        RBiC = BiC（::1）;
        GBiC = BiC（::2）;
        BBiC = BiC（::3）;
        SupResol = zeros（size（BiC））;
        [SupResol（::1）] = SuperresMexInt（RBiC MFactor ColorProcMethod Model）;
        [SupResol（::2）] = SuperresMexInt（GBiC MFactor ColorProcMethod Model）;
        [SupResol（::3）] = SuperresMexInt（BBiC MFactor ColorProcMethod Model）;
    %%% proc. each RGB channel independently 
    else
    %%% proc. luminance component only
        CBiC = double（BiC）/255;
        YIQ = rgb2ntsc（CBiC）;
        Lum = YIQ（::1）;
        [SupResolLum] = SuperresMexInt（Lum*255 MFactor ColorProcMethod Model）;
        YIQ（::1） = SupResolLum/255;
        SupResol = ntsc2rgb（YIQ）;
        SupResol = SupResol*255;
    %%% proc. luminance component only
    end
else
    BiC = double（BiC）/255*2-1;
    if MFactor == 2
        [SupResol] = SuperresCodeMex（BiC Model.M2 MFactor）;
    elseif MFactor == 3
        [SupResol] = SuperresCodeMex（BiC Model.M3 MFactor）;
    elseif MFactor == 4
        [SupResol] = SuperresCodeMex（BiC Model.M4 MFactor）;
    else
        display（‘Mag. factor should be [234].‘）;
        return;
    end
    SupResol = （SupResol+1）/2*255;
end

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件       36864  2010-03-20 13:26  SuperresCodeMex.mexw64
     文件         435  2008-06-22 10:43  Test.m
     文件         185  2008-06-21 23:41  Usage.txt
     文件       40054  2008-04-30 08:50  Butterfly.bmp
     文件      203416  2011-06-24 09:55  HighResol.png
     文件     1628311  2008-06-22 07:53  MatlabR2007aSupResModel.mat
     文件        2110  2008-06-22 10:47  SuperresCode.m
     文件       26271  2008-07-02 13:28  SuperresCodeMex.mexa64
     文件       26648  2008-07-02 13:28  SuperresCodeMex.mexglx
     文件       28672  2008-07-02 13:28  SuperresCodeMex.mexw32