清空筛选条件
清空筛选条件

Image into grayscale without using toolbox

2 次查看（过去 30 天）
Krish Desai
Krish Desai 2015-10-12
评论： Krish Desai 2015-10-12
This is my current code:
function out = luminance(current_img )
R=current_img(:,:,1);
G=current_img(:,:,2);
B=current_img(:,:,3);
I=.299*R + 0.587*G+0.114*B;
out=I;
end
I'm trying to make my image grayscale but that's not what's happening, what am I doing wrong?

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2015-10-12
That should work. What's the problem? Perhaps you want to cast it back to uint8 or something.
out = uint8(.299*double(R) + 0.587*double(G)+0.114*double(B));
or else just leave it as floating point and use [] in imshow to display it:
imshow(out, []);
  2 个评论
Krish Desai
Krish Desai 2015-10-12
The image is coming out in blues, yellows and greens. I tried typecasting but it didn't work.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Image Processing Toolbox 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by