Remove the gradient of the bands

Hello

I use Photoshop CC and I'm currently trying to remove some background gradient banding seen in some photos of company style I took recently. I basically added a circle of the gradient from light to black background.

Seen on computer the gradient works perfectly - but, seen on a mobile phone (which they would be probably considered - on apps such as linkedin, etc.), the strapping seems to be very apparent.

I tried different techniques such as the creation of a layer of dithering while working in 16-bit: follow this guide (Photoshop Actions to correct the banding of gradients Photoshop.):

  • Create a new layer (should be the highest).
  • Fill it with 50% graysolid.
  • Making noise: filter > noise > add noise. The parameters are amount : 25%; Distribution uniform =; Monochrome checked =.
  • Now click on Command-F (Ctrl + F on Windows) to repeat the noise on the same layer filter (if you're curious to know why, look at histogram of the layer that you perform the noise filter the first and second time).
  • Set the linear lightlayer. An excellent mode of fusion for this purpose. The half dark shadows is implemented as reversed linear subtraction (as burn linear) and half lighter than the linear addition (as linear density).
  • In the palette layers , define magic values for the layer Opacity to 1% and opacity of fill at 19%. You could (but not, really) read the note below on all the gory details *.
  • We finished. Now lock the layer (the icon of padlock in the layers palette), so it will not react to the mouse input. You can forget that it exists.

I also added the noise for the gradient layer to see if it seems to help - but it isn't really.

I would then merge all layers together, resize 960 x 640, convert to 8-bit and save.

Any advice would be greatly appreciated.

Photos below:

Image of the computer:

mike1blue960.jpg

banding1.jpg

Thank you

Stephen.

Without being able to test different approaches to solve the problem before posting one, all that is available is here to work with the pictures that you posted.  In the original and in the second image (which increased the contrast that makes the most noticeable banding), making a lasso selection drop the offending area and applying a Gaussian blur has eliminated the banding. Not fancy, but it worked as a final step. Maybe it's worth a try.

Tags: Photoshop

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