图像处理 | MATLAB实现图像的水印去除

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• 萌萌的预处理图像

• Matlab代码

[code]I=imread('2.jpg');
figure(10), imshow(I);
t =I(590 : 620, 240 : 440, 1 : 3);%估计水印区域
figure(1), imshow(t);
t1 = t(:,:,1);
figure(2), imshow(t1);
t2 = t(:, :, 2);
figure(3), imshow(t2);
t3 = t(:, :, 3);
figure(4), imshow(t3);

[m,n] = size(t2)
for i = 1:m
for j = 1:n
if t2(i,j) >= 150
t2(i,j) = 250;
end
end
end

figure(5), imshow(t2);

for i = 1:m
for j = 1:n
if t3(i,j) >= 150
t3(i,j) = 250;
end
end
end

figure(6), imshow(t3);

for i = 1:m
for j = 1:n
if t1(i,j) >= 150
t1(i,j) = 255;
end
end
end

figure(7),imshow(t1);

for i = 1:m
for j = 1:n
t(i,j,1) = t1(i,j);
t(i,j,2) = t2(i,j);
t(i,j,3) = t3(i,j);
end
end
figure(8), imshow(t);

for i = 1:31
for j = 1:201
I(i + 589, j + 239, 1:3)=t(i, j, 1:3);
end
end
figure(9), imshow(I);

• 运行结果