Conversion of Medical image to Blue Ration

1 view (last 30 days)
Respected Members! My task is to convert RGB image to Blue ratio image.
This is the formula of conversion:
and code is
% RGB to Blue Ratio Conversion %--------------------------------------
R= img(:,:,1);
BR=((100 * B)./(1+R+G)) .* (256./(1+B+R+G)); % formula for conversion
The expected output can be seen in this image after running the code.
But when I apply the code...the output is a black image -- there is no sign of anything in image. Here is the input image:
Kindly help. How I can fix this issue so that I can see the contents of image?

Accepted Answer

Dishant Arora
Dishant Arora on 6 Apr 2014
imshow(BR , [])
Dishant Arora
Dishant Arora on 7 Apr 2014
Use your image as it is for further processing or cast it to double using im2double as Image Analyst said.

Sign in to comment.

More Answers (1)

Image Analyst
Image Analyst on 6 Apr 2014
You need to cast to double because (B+R+G) will get clipped at 255 if you dont and just leave them as uint8!!! Then display with [] option in imshow like Dishant showed you.

Community Treasure Hunt

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

Start Hunting!

Translated by