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product white blends into background white
#1
Hello. I wanted to put a white background to this photograph (the first photo, original). But when I modify the levels to make the background completely white, I find that the white of the product itself blends into the background since the white of the product is even whiter than the background (second photo, modified). is there any way to fix this?
Best regards.


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#2
You need to separate the foreground (the box) from the gradient background.

Various ways to do that. Try the foreground select tool. https://docs.gimp.org/en/gimp-tool-foreg...elect.html

Use the FG select tool. Invert the selection, fill with white.  Kill the selection. If needed, adjust the result, with the curves tool.

One minute example: https://i.imgur.com/hjvq6so.mp4

Depending on destination ( is it a product icon ?) try and find a better original image.
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#3
perfect! Thank you very much.
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#4
You could trace with free select.  That is not a difficult trace.  Invert the selection and then use levels or bucket fill on the background.

This was done with free select and then levels.  A second trace of the edge of the box was done and then some Gaussian Blur to soften the join.  I could have made the background completely white with bucket fill.

   
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#5
(09-23-2022, 05:23 PM)rich2005 Wrote: You need to separate the foreground (the box) from the gradient background.

Various ways to do that. Try the foreground select tool. https://docs.gimp.org/en/gimp-tool-foreg...elect.html

Use the FG  select tool. Invert the selection, fill with white.  Kill the selection. If needed, adjust the result, with the curves tool.

One minute example:  https://i.imgur.com/hjvq6so.mp4

Depending on destination ( is it a product icon ?) try and find a better original image.

It's not perfect. Look at the photo. is there a way to select the background instead of the foreground? But in the same way that you proceed to select the product with the selection tool in the foreground. I say this because the foreground has many colors to select but the background has few and a more defined silhouette still comes out.


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