Luminance correction for colored images using SHINE toolbox
16 ビュー (過去 30 日間)
古いコメントを表示
Unable to create colored images with equalized luminance with SHINE toolbox (images I've put in the input folder are colored, however the images in output folder are in grey scale), no error is given.
0 件のコメント
回答 (2 件)
Rodrigo Souza
2019 年 1 月 28 日
編集済み: Rodrigo Souza
2019 年 1 月 28 日
Hi all,
I have put together three scripts for calculating (mean and SD), matching or normalizing luminance of colored images (using HSV and CIE Lab color spaces).
They may be specially useful for pupillometry measures of infant research.
The scripts and their descriptions are available at my OSF page: https://osf.io/auzjy/
Hope it helps.
0 件のコメント
Image Analyst
2016 年 7 月 4 日
編集済み: Image Analyst
2016 年 9 月 19 日
I've never heard of the SHINE toolbox. It's not one that the Mathworks sells. Do you have a reference?
To equalize luminance, convert to hsv or lab color space, then set the L or v channel to a constant, then convert back to rgb color space.
6 件のコメント
Image Analyst
2016 年 9 月 20 日
Your code where you computed meanLuminanceValue is not correct. It's just computing the mean of the current image, not of the reference/background image.
Also attach a background image(s) that you use to compute meanLuminanceValue as well as an image or two that you wish to correct/alter to match the luminance of your reference/background images.
ANA BUJAN
2016 年 9 月 21 日
Many thanks for your patience. Yeah, that was the reason why the images remained the same... Nevertheless, I'm not using a specific set of images for computing the meanLuminancevalue, instead I would like to use the whole set of images for doing that. Then, the reference images for computing the mean and for matching the luminance are the same.
I'm attaching five images from my set. Again, thank you.
参考
カテゴリ
Help Center および File Exchange で Image Processing Toolbox についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!