How can I white balance an image based on part of the image I know is white?

2 次查看（过去 30 天）

显示更早的评论

Matthew Parson 2017-6-2

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/343099-how-can-i-white-balance-an-image-based-on-part-of-the-image-i-know-is-white

回答： Mahmoud Afifi 2019-8-12

I have this image, and I know that the top left of it should be white. Is there a way for me to select that part of the image and say it's white, and then adjust the color of the rest of the image to match?

What I have so far is using roipoly to select the part of the image that I want, but I have no idea where to go from there in regards to color correction.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Mahmoud Afifi 2019-8-12

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/343099-how-can-i-white-balance-an-image-based-on-part-of-the-image-i-know-is-white#answer_387244

Try this one:

http://130.63.97.192/WB_for_srgb_rendered_images/demo.php

Reference: When Color Constancy Goes Wrong: Correcting Improperly White-Balanced Images, CVPR'19.

http://openaccess.thecvf.com/content_CVPR_2019/papers/Afifi_When_Color_Constancy_Goes_Wrong_Correcting_Improperly_White-Balanced_Images_CVPR_2019_paper.pdf

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

类别

Image Processing and Computer Vision Image Processing Toolbox Image Filtering and Enhancement Image Arithmetic

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

标签

产品

Image Processing Toolbox

Community Treasure Hunt

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

Translated by