txysjys.rar_matlab 图像压缩_图像压缩与解压_图像压缩解压

h0=figure('toolbar','none',... 'position',[198 56 350 468],... 'name','函数变换'); h1=axes('parent',h0,... 'position',[0.25 0.45 0.5 0.5],... 'visible','off'); I=imread('cameraman.tif'); imshow(I) b1=uicontrol('parent',h0,... 'units','points',... 'tag','b1',... 'backgroundcolor',[0.75 0.75 0.75],... 'style','pushbutton',... 'string','图像压缩',... 'position',[30 100 50 20],... 'callback',[... 'cla,',... 'I=imread(''cameraman.tif'');,',... 'I2=im2double(I);,',... 'imshow(I2)']); b2=uicontrol('parent',h0,... 'units','points',... 'tag','b2',... 'backgroundcolor',[0.75 0.75 0.75],... 'style','pushbutton',... 'string','图像解压',... 'position',[100 100 50 20],... 'callback',[... 'cla,',... 'I=imread(''cameraman.tif'');,',... 'I=im2double(I);,',... 'T=dctmtx(8);,',... 'B=blkproc(I,[8 8],''P1*x*P2'',T,T'');,',... 'mask=[1 1 1 1 0 0 0 0;,',... '1 1 1 0 0 0 0 0;,',... '1 1 0 0 0 0 0 0;,',... '1 0 0 0 0 0 0 0;,',... '0 0 0 0 0 0 0 0;,',... '0 0 0 0 0 0 0 0;,',... '0 0 0 0 0 0 0 0;,',... '0 0 0 0 0 0 0 0];,',... 'B2=blkproc(B,[8 8],''P1.*x'',mask);,',... 'I2=blkproc(B2,[8 8],''P1*x*P2'',T'',T);,',... 'imshow(I2)']); b3=uicontrol('parent',h0,... 'units','points',... 'tag','b3',... 'backgroundcolor',[0.75 0.75 0.75],... 'style','pushbutton',... 'string','线条解析',... 'position',[170 100 50 20],... 'callback',[... 'cla,',... 'I=imread(''cameraman.tif'');,',... 'BW=edge(I);,',... 'imshow(BW)']); b4=uicontrol('parent',h0,... 'units','points',... 'tag','b4',... 'backgroundcolor',[0.75 0.75 0.75],... 'style','pushbutton',... 'string','关闭',... 'fontsize',15,... 'position',[80 50 80 30],... 'callback','close');