Want to remove white patches of a image

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Guys, I have a problem this is a jewelry photo that i have uploaded what i need to do is remove the white bright spot that is often appearing on the gold surfaces as well as the gemstones, these are the reflection of the lighting setup. What i am planning to do is find out the region of high white intensity that is with RGB values over 220 and then replace them by the average shade of the pixels around them, thus removing those white patches. Is this possible? Thanks a lot guys.

Accepted Answer

Image Analyst
Image Analyst on 8 Jul 2014
This is a standard photography problem - not really a MATLAB problem. First of all, use diffuse illumination, like a softbox. Then, put a polarizing sheet in front of it and put a rotatable polarizer on the camera lens. Rotate the polarizer until the specular reflections go away. This is the well known "crossed polarizers" or "cross polars" method that so well known to any photographer. It's much better to prevent the problem in the first place than to fix it.
I don't know why you want to get rid of them anyway. In fact jewelry stores go to special efforts to get those glints and specular reflections to appear. They use multiple point sources of light to create them. You'll notice you will never see broad fluorescent lamp panels in a jewelry store because those don't create glints.
  8 Comments
Nurul Fajrin Alifah
Nurul Fajrin Alifah on 25 Oct 2017
i want to remove the white bright in my eye picture, maybe you can help me, thanks before
Image Analyst
Image Analyst on 2 Apr 2018
Edited: Image Analyst on 3 Apr 2018
nurul: The white spot is definitely gone in nurul's image, so I don't know what there is to "fix". It needs to be removed, and it was removed, so what's the problem?
emilia, you'd probably be best off starting your own question with your own image attached, NOT here (not anywhere on this page!) under nurul's question.

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