How to remove the shadow in image by using openCV? [closed]

Question

As title said, any solutions on how to remove the shadow in image via openCV? Thanks and appreciate any helps!

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Below is a link to a website, which completely deals with shadows, its detection, removal etc. Try it. It is more than sufficient, i think. It contains a lot of papers related to it. Try to implement it. cs.haifa.ac.il/hagit/courses/seminars/shadowRemoval/… If it is not sufficient, googling "shadow removal in images" gives you lots of information and papers. – Tinworks

Here you have an implementation that explains an algorithm for shadow removal. Here is another method, simpler and maybe better to understand how to detect shadows in images. Good luck. – Brehm

Answer 1

For those who are looking for publication along with the source code of described algorithm, you might be interested by this paper: "Single-Image Shadow Detection and Removal using Paired Regions" by Ruiqi Guo, Qieyun Dai and Derek Hoiem.

They describe a method which works quite well and may be a very good start to implement your shadow-removing algorithm using OpenCV.

I found the source code here, but for posterity and to prevent possibly dead links in the future (I have met many), I also uploaded it on the Internet Archive.

Paola