数字图像处理结课论文(6)

B=zeros(size(rgb1,1),size(rgb1,2)); ind=find((H>=0)&(H<2*pi/3)); B(ind)=I(ind).*(1.0-S(ind));

R(ind)=I(ind).*(1.0+S(ind).*cos(H(ind))./cos(pi/3.0-H(ind))); G(ind)=1.0-(R(ind)+B(ind)); ind=find((H>2*pi/3)&(H<4*pi/3)); H(ind)=H(ind)-pi*2/3; R(ind)=I(ind).*(1.0-S(ind));

G(ind)=I(ind).*(1.0+S(ind).*cos(H(ind))./cos(pi/3.0-H(ind))); B(ind)=1.0-(R(ind)+G(ind)); ind=find((H>=4*pi/3)&(H<2*pi)); H(ind)=H(ind)-pi*4/3; G(ind)=I(ind).*(1.0-S(ind));

B(ind)=I(ind).*(1.0+S(ind).*cos(H(ind))./cos(pi/3.0-H(ind))); R(ind)=1.0-(G(ind)+B(ind)); hsi_rgb=cat(3,R,G,B); figure(); imshow(hsi_rgb);

diff=(abs(hsi_rgb-rgb_filtered)); figure(); imshow(diff);

实验结果如下：

R分量 G分量

B分量 原始彩色图像