Need help in analyzing image planes
显示 更早的评论
% CODE 1
% Read RGB image
x = imread('Lena.jpg');
rPlane = x(:,:,1);
imshow(rPlane) % Displays Red Plane in Lena.jpg image
%%%%%
% CODE 2
y = imread('Lena.jpg');
y(:,:,2) = 0;
y(:,:,3) = 0;
imshow(y);
% I need to know about this displayed
% image 'y' with 'G' and 'B' planes all zeros
采纳的回答
Image Analyst
2015-3-11
1 个投票
They both look "right" - what's the problem? They are different in that code 1 extracts the red channel as a monochrome image and it will display as grayscale (unless you applied a colormap), whereas code 2 leaves the image as RGB. Code 2 just zeros out the green and blue so the image will show the red channel as a red hue. What do you want to do? Neither is right or wrong it just depends on what you want to do with the different color channels.
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Red 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
