文档介绍：图像Demosaic算法实验报告
图像Demosaic算法
马赛克成因
一般的数码相机采用CDC或CMOS做传感器,约占数码相机总成本的10%一25%,是相机的最昂贵的部件之一"对于专业相机,如用在科学或医学中的,使w
if mod(j,2)==1
IMG(i,j,1)=I(i,j,1);
else
IMG(i,j,2)=I(i,j,2);
end
end
end
for i=2:2:h
for j=1:w
if mod(j,2)==1
IMG(i,j,2)=I(i,j,2);
else
IMG(i,j,3)=I(i,j,3);
end
end
end
figure
imshow(IMG);
%IMG11=rgb2gray(IMG);
%save('','IMG11')
IMG=double(IMG);
for i=2:2:m-1
for j=2:2:n-1
x11 = IMG(i-1,j-1,1);
x12 =IMG(i-1,j+1,1);
x21 = IMG(i+1,j-1,1);
x22 = IMG(i+1,j+1,1);
IMG(i,j,1) = uint8( ( x11+x21+x12+x22)/4 );
end
end
for i=2:m-1
for j=2:n-1
if IMG(i,j,1)==0
IMG(i,j,1)=*(IMG(i,j+1,1)+IMG(i,j-1,1)+IMG(i+1,j,1)+IMG(i-1,j,1));
else
IMG(i,j,1)=IMG(i,j,1);
end
end
end
for i=2:2:m-1
for j=2:2:n-1
IMG(i,j,2)=*(IMG(i,j+1,2)+IMG(i,j-1,2)+IMG(i+1,j,2)+IMG(i-1,j,2));
end
end
for i=2:m-1
for j=2:n-1
if IMG(i,j,2)==0
x11 = IMG(i-1,j-1,2);
x12 =IMG(i-1,j+1,2);
x21 = IMG(i+1,j-1,2);
x22 = IMG(i+1,j+1,2);
IMG(i,j,2) = uint8( *( x11+x21+x12+x22) );
else
IMG(i,j,2)=IMG(i,j,2);
end
end
end
for i=3:2:m-1
for j=3:2:n-1
x11 = IMG(i-1,j-1,3);
x12 = IMG(i-1,j+1,3);
x21 = IMG(i+1,j-1,3);
x22 = IMG(i+1,j+1,3);
IMG(i,j,3) = uint8( *( x11+x21+x12+x22) );
end
end
for i=2:m-1
for j=2:n-1
if IMG(i,j,3)==0
IMG(i,j,3)=*(IMG(i,j+1,3)+IMG(i,j-1,3)+IMG(i+1,j,3)+IMG(i-1,j,3));
else
IMG(i,j,3)=IMG(i,j,3);
end
end
end
figure
imshow(uint8(IMG));
%梯度
clear;
clc;
I=imread('');
figure
imshow(I);
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