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//  Created by liuzhe on 17/3/30.

%-- 17-3-27 上午7:44 --%%-- 17-3-27 上午7:49 --%I_huidu=imread('pout.tif');I_erzhi=inread('circles.png');I_erzhi=imread('circles.png');I_erzhi2=imread('blobs.png');I_erzhi=imread('circles.png');figure(1),imshow(I_huidu);figure(2),imshow(I_erzhi);figure(3),imshow(I_erzhi2);[I_suoyin,colormap]=imread('trees.tif');figure(4),imshow(I_suoyin,colormap);figure(5),imshoew(I_suoyin);figure(5),imshow(I_suoyin);figure(5),imshow(colormap);I_RGB=imread('peppers.png');I_RGB=imread('peppers.png')figure(6),imshow(I_RGB);R=I_RGB(:,:,1);figure(100),imshow(R);G = I_RGB(:,:,2);B = I_RGB(:,:,3);figure(G),imshow(G);figure(101),imshow(G);figure(102),imshow(B);subplot(2,2,1),imshow(I_RGB);subplot(2,2,2),imshow(R);subplot(2,2,3),imshow(G);subplot(2,2,4),imshow(B);I_RGB=imread('pappers.png');I=imread('pout.tif');GA = imnoise(I,'gaussian');imwrite(GA,'GApout.tif');subplot(1,3,1),imshow(I);subplot(1,3,2),imshow(GA);PS = imnoise(I,'salt & pepper');subplot(1,3,3),imshow(PS);imwrite(PS,'PSpout.tif');

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