Local histogram equalization in matlab
57 views (last 30 days)
Show older comments
Hi.how can i histeq in a rectangular region in an image without any cheang in other pixels. I need code . thanks
0 Comments
Answers (1)
Subhadeep Koley
on 4 Nov 2020
The below code might help.
% Read the image
img = imread('cameraman.tif');
% Extract your Region-Of-Interest (ROI)
ROI = img(50:200, 50:200); % Change these values according to your need
% Perform histogram equalization on the ROI
histEqROI = histeq(ROI);
% Replace original ROI histogram equalizated ROI
resImg = img;
resImg(50:200, 50:200) = histEqROI;
% Display results
figure
subplot(1, 2, 1)
imshow(img)
title('Original image')
subplot(1, 2, 2)
imshow(resImg)
title('ROI histogram equalizated image')
0 Comments
See Also
Categories
Find more on Image Filtering and Enhancement in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!