I have about 10 images of plates I am taking for posting on Ebay. The concave bottoms focus more light back at the camera giving a little more blown out area (see example). My grandmother, who is selling the plates wants the colors balanced instead of writing a note as to why this is happening. I tried using Gimp to dodge/burn the lighter areas and while it was kind of working it didn't give a consistent effect. I tried making a circular mask to dodge/burn but certain areas are brighter than others and so it wasn't working nearly as well as I hoped. How do I fix this? My options are:

A: Adjust the lighting being used (we were using light coming through a window and a reading light aimed at the ceiling) and/or

B: Some method of editing in Gimp I have yet to figure out that will let me make the correct adjustments.


  • \$\begingroup\$ I think the issue is reflection from the light at the window. Please try the same shot with the window blocked or at night and then compare. \$\endgroup\$
    – chili555
    May 24, 2015 at 13:22

2 Answers 2


Usually a polarizing filter on the lens is enough, and if it is not, you can apply Krylon Dulling Spray http://www.krylon.com/products/dulling-spray/ http://www.amazon.com/Krylon-K1310-11-Ounce-Dulling-Spray/dp/B00009R8O6 or something similar. The spray is easily removed after. Important limitation is that dulling sprays can't be applied if humidity is higher than 85%, see the directions on the can.


I applied a radial gradient to the quick-mask in Gimp like this:

screenshot of quickmask

...then adjusted the black point in levels:

screenshot of levels dialog

...with this result:

enter image description here

There is still inconsistency, as you described, but I can't tell if it's from lighting, or discoloration on the actual plate. You could probably do better if you took the time to create a custom gradient that closely matched the light fall-off on the plate.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.