# ScreenShots interpolations

**URL:** https://discourse.paraview.org/t/screenshots-interpolations/6594
**Category:** ParaView Support
**Created:** [March 3, 2021, 11:08am UTC](https://discourse.paraview.org/t/screenshots-interpolations/6594 "2021-03-03T11:08:26Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![Corentin](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/c/919ad9/32.png) [@Corentin](https://discourse.paraview.org/u/Corentin)
#### Post date: [March 3, 2021, 11:08am UTC](https://discourse.paraview.org/t/screenshots-interpolations/6594/1 "2021-03-03T11:08:26Z")

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Hello,

I do screenshots of slices in Grayscale in Paraview. I set up a transparent background, and when I read my images (with Matlab for example), I see that the pixels surrounding my object are interpolated between the gray value of my object and the “0” of the background, which distort my results.  
Do you know how I could disable such an interpolation ? I already tried to disable the light tool kit, but it’s not sufficient.  
Thank you very much for your answer,

regards,

Corentin Calbrix

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 3, 2021, 12:45pm UTC](https://discourse.paraview.org/t/screenshots-interpolations/6594/2 "2021-03-03T12:45:31Z")

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PointDataToCellData ?

Please share a screenshot.

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### Author: ![Corentin](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/c/919ad9/32.png) [@Corentin](https://discourse.paraview.org/u/Corentin)
#### Post date: [March 3, 2021, 3:21pm UTC](https://discourse.paraview.org/t/screenshots-interpolations/6594/3 "2021-03-03T15:21:49Z")

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Hi,  
Thanks for the response. My datas are already in CellData when I make my slices. Here is a screenshot where you can see the interpolations between my objects and the background. My gray datas should be around 128, and are interpolated at around 50.  
 ![Test](https://discourse.paraview.org/uploads/default/original/2X/f/f60c4b763c92b600ca90ed58d927dbdf5c0a111f.png)

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### Author: ![Kenneth\_Moreland](https://discourse.paraview.org/user_avatar/discourse.paraview.org/kenneth_moreland/32/15033_2.png) [@Kenneth\_Moreland](https://discourse.paraview.org/u/Kenneth_Moreland)
#### Post date: [March 3, 2021, 4:54pm UTC](https://discourse.paraview.org/t/screenshots-interpolations/6594/4 "2021-03-03T16:54:16Z")

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My guess is that you are seeing effects from antialiasing in the rendering. You can try turning off the FXAA feature.

Go to ParaView settings, click on the `Render View` tab, and turn off the `Use FXAA` feature.

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### Author: ![Corentin](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/c/919ad9/32.png) [@Corentin](https://discourse.paraview.org/u/Corentin)
#### Post date: [March 4, 2021, 9:58am UTC](https://discourse.paraview.org/t/screenshots-interpolations/6594/5 "2021-03-04T09:58:55Z")

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thank you very much !! It works perfectly now, I do not have any interpolations anymore.