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1、一、通用函数： colorbar 显示彩色条语法：colorbarcolorbar('vert')colorbar('horiz')colorbar(h)h=colorbar(...)colorbar(...,'peer',axes_handle)getimage从坐标轴取得图像数据语法：A=getimage(h)[x,y,A]=getimage(h)[...,A,flag]=getimage(h)[...]=getimageimshow显示图像语法：imshow(I,n)imshow(I,[lowhigh])imshow(BW)imshow(X,map)
2、imshow(RGB)imshow(...,display_option)imshow(x,y,A,...)imshowfilenameh=imshow(...)montage在矩形框中同时显示多幅图像语法：montage(I)montage(BW)montage(X,map)montage(RGB)h=montage(...)immovie创建多帧索引图的电影动画语法：mov=immovie(X,map)mov=immovie(RGB)subimage在一副图中显示多个图像语法：subimage(X,map)subimage(I)subimage(BW)
3、 subimage(RGB)subimage(x,y,...)subimage(...)truesize调整图像显示尺寸语法：truesize(fig,[mrowsmcols])truesize(fig)warp将图像显示到纹理映射表面语法：warp(X,map)warp(I,n)warp(z,...)warp(x,y,z,...) h=warp(...)zoom缩放图像语法：zoomonzoomoffzoomoutzoomresetzoomzoomxonzoomyonzoom(factor)zoom(fig,option)二、图像文件I/O函数命令i
4、mfinfo 返回图形图像文件信息语法：info=imfinfo(filename,fmt)info=imfinfo(filename)imread 从图像文件中读取（载入）图像语法：A=imread(filename,fmt)[X,map]=imread(filename,fmt)[...]=imread(filename)[...]=imread(URL,...)[...]=imread(...,idx)(CUR,ICO,andTIFFonly)[...]=imread(...,'frames',idx)(GIFonly)[...]=imread(...,ref
5、)(HDFonly)[...]=imread(...,'BackgroundColor',BG)(PNGonly)[A,map,alpha]=imread(...)(ICO,CUR,PNGonly)imwrite 把图像写入（保存）图像文件中语法：imwrite(A,filename,fmt)imwrite(X,map,filename,fmt)imwrite(...,filename)imwite(...,Param1,Val1,Param2,Val2...)imcrop 剪切图像语法：I2=imcrop(I)X2=imcrop(X,map)RGB2=imcrop
6、(RGB)I2=imcrop(I,rect)X2=imcrop(RGB,rect)[...]=imcrop(x,y,...)[A,rect]=imcrop(...)[x,y,A,rect]=imcrop(...)imresize 改变图像大小语法：B=imresize(A,m,method)imrotate 旋转图像语法：B=imrotate(A,angle,method)B=imrotate(A,angle,method,'crop')三、像素和统计处理函数corr2 计算两个矩形的二维相关系数语法：r=corr2(A,B)imcontour创建图像数据的轮廓图语法
7、：imcontour(I,n)imcontour(I,v)imcontour(x,y,...)imcontour(...,LineSpec)[C,h]=imcontour(...)imfeature 计算图像区域的特征尺寸语法：stats=imfeature(L,measurements)stats=imfeature(L,measurements,n)imbist 显示图像数据的柱状图impixel确定像素颜色值语法：P=impixel(I)P=impixel(X,
