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《数字图像处理matlab程序大全1》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、%对一幅图像进行2倍、4倍、8倍和16倍减采样，显示结果。a=imread(,E:lmtketangshiyanceshituPlane211.jpg,);b=rgb2gray(a);form=l:4figure[width,height]=size(b);quartimage=zeros(floor(width/(m)),floor(height/(2*m)));k=l;n=l;fori=l:(m):widthforj=l:(2*m):heightquartimage(k/n)=b(i,j);n
2、=n+l;endk:k+l;n=l;endimshow(uint8(quartimage));endIdmreadfF:workDigitalImageProcessing2015ketangshiyanceshjtuPlane211.jpg');I2=rgb2gray⑴;imshow(l);figure,imshow(l2);%读入源图像，BMP格式l=imread('F:workDigitalImageProcessing2015ketangshiyanceshitucamer
3、aman.bmp’);%显示图像I的基本信息whosI示图像imshow(l)%显示图像的详细信息，filename是存储在磁盘屮的图像全名imfinfoCF:workDigitalImageProcessjng2015ketangshiyanceshitucameraman.bmp')%保存图像I为jpg格式，压缩存储，q为图像质量，介于0-100之间的整数imwrite(l/F:workDigitalImageProcessing2015ketangshiyanceshituc
4、ameramanl.jpg.);%以位图的格式存储图像imwrite(l/F:workDigitalImageProcessing2015ketangshiyanceshitucameramanl.tif);%在同一个阁像窗口显示多幅阁像，并为每幅阁像添加标题。例：显示3行2列,6个阁像。figure;subplot(3,2,l);imshow(T:workDigitalImageProcessing2015ketangshiyanceshitucameraman.bmp1};ti
5、tle(’cameramanl’)；subplot(3,2,2);imshowCF:workDigitalImageProcessing2015ketangshiyanceshitucameraman.bmp1);titlefcameramar^);subplot(3,2,3)；imshowfF:workDigitalImageProcessing2015ketangshiyanceshitucameraman.bmp1);titlefcameraman3’};subplot(3,
6、2,4);imshow('F:workDigitalImageProcessing2015ketangshiyanceshitucameraman.bmp1);title('cameraman4');subplot(3,2,5);imshowGF:workDigitalImageProcessing2015ketangshiyanceshitucameraman.bmp1};titlef'cameramanS1);subplot(3,2,6);imshowfF:workDigi
7、talImageProcessing2015ketangshiyanceshitucameraman.bmp1};title('cameraman6');%将图像转为二值图形gg=im2bw(l);%显示二值图像figure;imshow(gg);imwrite(gg/F:workDigitalImageProcessing2015ketangshiyanceshitucameraman2.tif’);%读入一幅RGB图像，变换为灰度图像和二值图像，并在同一个窗口内分成三个子窗口来分别
8、％显示RGB图像和灰度图像，注上文字标题。a=imread(,F:workDigitalImageProcessing2015ketangshiyanceshitucameraman.jpg')i=rgb2gray(a);I=im2bw(a,0.5);subplot(3,l,l);imshow(a);titlef原图像•)subplot{3,l,2);imshow⑴;titlef灰度图像subplot(3,l,3)
