Geek_LFP

I=imread('imagefile.jpg'); J = imnoise(I,'gauss',0.05,0.02); %添加均值为0.05，方差为0.02的高斯噪声 %J = imnoise(I,'salt & pepper',0.02); %添加2%像素被污染的椒盐噪声 ave1=fspecial('average',3);

I=imread('imagefile.jpg'); I=rgb2gray(I); I=im2double(I); A=fspecial('log'); %拉普拉斯高斯算子 %A=fspecial('prewitt'); %prewitt算子，用于边缘增强 %A=fspecial('unsharp'); %对比度增强滤波算子

I=imread('imagefile.jpg'); %读入图像 J=imnoise(I,'gauss',0.05,0.02); %添加高斯噪声 %J=imnoise(I,'salt&pepper',0.02); %添加椒盐噪声 x=[0,1,0;1,-4,1;0,1,0]; %拉普拉斯算子 y=[-1,-1,-1

I=imread('imagefile.jpg'); I=rgb2gray(I); %J=imnoise(I,'gaussian',0,0.005); %高斯噪声 J=imnoise(I,'salt & pepper'); %椒盐噪声 subplot(2,2,1);imshow(I); title('原始图像'); subplot(2,2,2); imshow(J