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Posted (edited)

Hi, I tried to find it by moving there and back, but couldn't: contribution slider on denoise filter is a mistery to me, how does it differs from amount slider? 

It looks to me that both sliders just affect the amount applied, be it luminance of colour denoise.

Edited by Jaimoe
Typing Error
  • Staff
Posted

The Luminance Contribution slider is use to adjusts only the brightness of the coloured pixels.

The Colours Contribution slider controls how much of the overall chrominance noise reduction is added to the image.

The link below is to an article explaining these types of noise in more detail and wirer they normally occur in photos

https://contrastly.com/understanding-noise-reduction/

Posted

Thank you for trying to answer. It took me time to read this article, yet I'm trying to understand what is "contribution" in Affinity Photo, how it differs from plain measure of amount, controlled by the other slider.

Posted
On 9/26/2020 at 5:36 PM, Jaimoe said:

Hi, I tried to find it by moving there and back, but couldn't: contribution slider on denoise filter is a mistery to me, how does it differs from amount slider? 

It looks to me that both sliders just affect the amount applied, be it luminance of colour denoise.

Contribution slider is simply an opacity control.

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