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数字图像处理--算术、几何、谐波、逆谐波均值滤波器Matlab

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文链接:https://blog.csdn.net/Dooonald/article/details/78545461
算术均值

close all
clear all

f=imread(\'D:/testData/filtering.tif\');

[w,h]=size(f);
image= f(:,:);
fsize1=3;
fsize2=5;
fsize3=9;

fssize1=(fsize1-1)/2;
fssize2=(fsize2-1)/2;
fssize3=(fsize3-1)/2;

figure();
subplot(1,2,1);
imshow(image);
xlabel(\'原图像\');

resultImage = image;

for x=1+fssize1:1:w-fssize1
for y=1+fssize1:1:w-fssize1
is=f(x-fssize1:1:x+fssize1,y-fssize1:1:y+fssize1);
resultImage(x,y)=sum(is(:))/numel(is);
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'3*3算术均值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize2:1:w-fssize2
for y=1+fssize2:1:w-fssize2
is=f(x-fssize2:1:x+fssize2,y-fssize2:1:y+fssize2);
resultImage(x,y)=sum(is(:))/numel(is);

end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'5*5算术均值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize3:1:w-fssize3
for y=1+fssize3:1:w-fssize3
is=f(x-fssize3:1:x+fssize3,y-fssize3:1:y+fssize3);
resultImage(x,y)=sum(is(:))/numel(is);

end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'9*9算术均值\');
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几何均值

close all
clear all

f=imread(\'D:/testData/filtering.tif\');

[w,h]=size(f);
image= f(:,:);
fsize1=3;
fsize2=5;
fsize3=9;

fssize1=(fsize1-1)/2;
fssize2=(fsize2-1)/2;
fssize3=(fsize3-1)/2;

figure();
subplot(1,2,1);
imshow(image);
xlabel(\'原图像\');

resultImage = image;

for x=1+fssize1:1:w-fssize1
for y=1+fssize1:1:w-fssize1
is=f(x-fssize1:1:x+fssize1,y-fssize1:1:y+fssize1);
resultImage(x,y)=prod(prod(is(:)))^(1/numel(is));
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'3*3几何均值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize2:1:w-fssize2
for y=1+fssize2:1:w-fssize2
%遍历每个点的四周
is=f(x-fssize2:1:x+fssize2,y-fssize2:1:y+fssize2);
resultImage(x,y)=prod(prod(is(:)))^(1/numel(is));
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'5*5几何均值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize3:1:w-fssize3
for y=1+fssize3:1:w-fssize3
%遍历每个点的四周
is=f(x-fssize3:1:x+fssize3,y-fssize3:1:y+fssize3);
resultImage(x,y)=prod(prod(is(:)))^(1/numel(is));
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'9*9几何均值\');
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谐波均值

close all
clear all

f=imread(\'D:/testData/filtering.tif\');

[w,h]=size(f);
image= f(:,:);
fsize1=3;
fsize2=5;
fsize3=9;

fssize1=(fsize1-1)/2;
fssize2=(fsize2-1)/2;
fssize3=(fsize3-1)/2;

figure();
subplot(1,2,1);
imshow(image);
xlabel(\'原图像\');

resultImage = image;

for x=1+fssize1:1:w-fssize1
for y=1+fssize1:1:w-fssize1
is=f(x-fssize1:1:x+fssize1,y-fssize1:1:y+fssize1);
is=1./is;
resultImage(x,y)=numel(is)/sum(is(:));

end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'3*3谐波均值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize2:1:w-fssize2
for y=1+fssize2:1:w-fssize2
%遍历每个点的四周
is=f(x-fssize2:1:x+fssize2,y-fssize2:1:y+fssize2);
is=1./is;
resultImage(x,y)=numel(is)/sum(is(:));
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'5*5谐波均值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize3:1:w-fssize3
for y=1+fssize3:1:w-fssize3
%遍历每个点的四周
is=f(x-fssize3:1:x+fssize3,y-fssize3:1:y+fssize3);
is=1./is;
resultImage(x,y)=numel(is)/sum(is(:));
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'9*9谐波均值\');
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逆谐波

close all
clear all

f=imread(\'D:/testData/filtering.tif\');

[w,h]=size(f);
image= f(:,:);
Q1 = 1.5;
fsize1=3;
fsize2=5;
fsize3=9;

fssize1=(fsize1-1)/2;
fssize2=(fsize2-1)/2;
fssize3=(fsize3-1)/2;

figure();
subplot(1,2,1);
imshow(image);
xlabel(\'原图像\');

resultImage = image;

for x=1+fssize1:1:w-fssize1
for y=1+fssize1:1:w-fssize1
is=f(x-fssize1:1:x+fssize1,y-fssize1:1:y+fssize1);
resultImage(x,y) = sum(is(:).^(Q1+1))/sum(is(:).^(Q1));
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'3*3逆谐波均值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize2:1:w-fssize2
for y=1+fssize2:1:w-fssize2
%遍历每个点的四周
is=f(x-fssize2:1:x+fssize2,y-fssize2:1:y+fssize2);
resultImage(x,y) = sum(is(:).^(Q1+1))/sum(is(:).^(Q1));

end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'5*5逆谐波均值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize3:1:w-fssize3
for y=1+fssize3:1:w-fssize3
%遍历每个点的四周
is=f(x-fssize3:1:x+fssize3,y-fssize3:1:y+fssize3);
resultImage(x,y) = sum(is(:).^(Q1+1))/sum(is(:).^(Q1));
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'9*9逆谐波均值\');
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中值

close all
clear all

f=imread(\'D:/testData/filtering.tif\');

[w,h]=size(f);
image= f(:,:);

fsize1=3;
fsize2=5;
fsize3=9;

fssize1=(fsize1-1)/2;
fssize2=(fsize2-1)/2;
fssize3=(fsize3-1)/2;

figure();
subplot(1,2,1);
imshow(image);
xlabel(\'原图像\');

resultImage = image;

for x=1+fssize1:1:w-fssize1
for y=1+fssize1:1:w-fssize1
is=f(x-fssize1:1:x+fssize1,y-fssize1:1:y+fssize1);
temp = sort(is(:));
resultImage(x,y)= temp((numel(temp)-1)/2);
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'3*3中值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize2:1:w-fssize2
for y=1+fssize2:1:w-fssize2
%遍历每个点的四周
is=f(x-fssize2:1:x+fssize2,y-fssize2:1:y+fssize2);
temp = sort(is(:));
resultImage(x,y)= temp((numel(temp)-1)/2);
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'5*5中值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize3:1:w-fssize3
for y=1+fssize3:1:w-fssize3
%遍历每个点的四周
is=f(x-fssize3:1:x+fssize3,y-fssize3:1:y+fssize3);
temp = sort(is(:));
resultImage(x,y)= temp((numel(temp)-1)/2);
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'9*9中值\');
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最大值

close all
clear all

f=imread(\'D:/testData/filtering.tif\');

[w,h]=size(f);
image= f(:,:);

fsize1=3;
fsize2=5;
fsize3=9;

fssize1=(fsize1-1)/2;
fssize2=(fsize2-1)/2;
fssize3=(fsize3-1)/2;

figure();
subplot(1,2,1);
imshow(image);
xlabel(\'原图像\');

resultImage = image;

for x=1+fssize1:1:w-fssize1
for y=1+fssize1:1:w-fssize1
is=f(x-fssize1:1:x+fssize1,y-fssize1:1:y+fssize1);
temp = is(:);
resultImage(x,y)= max(temp);
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'3*3最大值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize2:1:w-fssize2
for y=1+fssize2:1:w-fssize2
%遍历每个点的四周
is=f(x-fssize2:1:x+fssize2,y-fssize2:1:y+fssize2);
temp = is(:);
resultImage(x,y)= max(temp);
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'5*5最大值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize3:1:w-fssize3
for y=1+fssize3:1:w-fssize3
%遍历每个点的四周
is=f(x-fssize3:1:x+fssize3,y-fssize3:1:y+fssize3);
temp = is(:);
resultImage(x,y)= max(temp);
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'9*9最大值\');
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最小值

close all
clear all

f=imread(\'D:/testData/filtering.tif\');

[w,h]=size(f);
image= f(:,:);

fsize1=3;
fsize2=5;
fsize3=9;

fssize1=(fsize1-1)/2;
fssize2=(fsize2-1)/2;
fssize3=(fsize3-1)/2;

figure();
subplot(1,2,1);
imshow(image);
xlabel(\'原图像\');

resultImage = image;

for x=1+fssize1:1:w-fssize1
for y=1+fssize1:1:w-fssize1
is=f(x-fssize1:1:x+fssize1,y-fssize1:1:y+fssize1);
temp = is(:);
resultImage(x,y)= min(temp);
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'3*3最小值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize2:1:w-fssize2
for y=1+fssize2:1:w-fssize2
%遍历每个点的四周
is=f(x-fssize2:1:x+fssize2,y-fssize2:1:y+fssize2);
temp = is(:);
resultImage(x,y)= min(temp);
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'5*5最小值\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize3:1:w-fssize3
for y=1+fssize3:1:w-fssize3
%遍历每个点的四周
is=f(x-fssize3:1:x+fssize3,y-fssize3:1:y+fssize3);
temp = is(:);
resultImage(x,y)= min(temp);
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'9*9最小值\');
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中点

close all
clear all

f=imread(\'D:/testData/filtering.tif\');

[w,h]=size(f);
image= f(:,:);

fsize1=3;
fsize2=5;
fsize3=9;

fssize1=(fsize1-1)/2;
fssize2=(fsize2-1)/2;
fssize3=(fsize3-1)/2;

figure();
subplot(1,2,1);
imshow(image);
xlabel(\'原图像\');

resultImage = image;

for x=1+fssize1:1:w-fssize1
for y=1+fssize1:1:w-fssize1
is=f(x-fssize1:1:x+fssize1,y-fssize1:1:y+fssize1);
temp = is(:);
resultImage(x,y)= (max(temp) + min(temp))/2;
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'3*3中点\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize2:1:w-fssize2
for y=1+fssize2:1:w-fssize2
%遍历每个点的四周
is=f(x-fssize2:1:x+fssize2,y-fssize2:1:y+fssize2);
temp = is(:);
resultImage(x,y)= (max(temp) + min(temp))/2;
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'5*5中点\');

resultImage= f(:,:);
figure();
subplot(1,2,1);
imshow(f);
xlabel(\'原图像\');

for x=1+fssize3:1:w-fssize3
for y=1+fssize3:1:w-fssize3
%遍历每个点的四周
is=f(x-fssize3:1:x+fssize3,y-fssize3:1:y+fssize3);
temp = is(:);
resultImage(x,y)= (max(temp) + min(temp))/2;
end
end


subplot(1,2,2);
imshow(resultImage);
xlabel(\'9*9中点\');
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Matlab实现IIR数字滤波器设计发布时间:2022-07-18
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