Color decontamination filter

[ashf]

I'd like to request color decontamination filter that Photoshop and Pixelmator has.
It removes unwanted fringe color from the object that the background has been removed.

[John Rostron]

Does the Defringe filter not do what you want?

https://affinity.help/photo/en-US.lproj/index.html?page=pages/Filters/filter_defringe.html?title=Defringe

John

[ashf]

No, it's different. the color decontamination can remove large fuzzy fringe colors as seen such as on hair.
Similar to Remove Black/White Matte filter.

Photoshop has two color decontaminatios.
One in Selection brush(refinement option),
One in the Filter menu as an independent filter.


Right before "RESULT, CUT OUT HAIR.", you see the Decontaminate colors option.
https://photoshopcafe.com/cut-anything-photoshop-3-best-ways-remove-backgrounds-photos/

[Discover Hawk]

This is why I can't quite give up  PS yet, i need decontaminate colors.

 

[NotMyFault]

You can decontaminate colors in Photo with just a little bit of extra effort. I support this feature request, but while you are waiting may use these simple steps:

• add a HSL adjustment,
• reduce saturation to 0,
• invert inherent mask,
• and paint in a quit mask at the edge by brush.

the last step could be further automated with extra filters (PT or channel mixer filter to select semi-transparent edge areas, then Gaussian blur to increase width by a few px, another curves adjustment to boost / sharpen alpha ensuring only edges are impacted.

Those layers can be recorded as macro or stored as assets for easy re-use.

[Discover Hawk]

Although it can be done manually in many ways . but in PS it only takes me a few seconds to press a button, people need tools to save time, that's the goal of all tools, not to make things more complicated, no one wants to use software from the last century, even if they're free, and instead of learning the old ways, I'd rather use the new automated tools like the ones that are now available for auto zooming AI tools, because of AI I've pretty much stopped looking into how to zoom in on images now.

 

[Discover Hawk]

By the way, I don't know why there is absolutely no discussion about AI in the Affinity community, it's strange, like isolation from the world.

 

[NotMyFault]

7 hours ago, DicownedHawk said:

By the way, I don't know why there is absolutely no discussion about AI in the Affinity community, it's strange, like isolation from the world.

 

Hiding under a rock?

[Discover Hawk]

I don't know why I can't find any relevant posts in my search

[GarryP]

The search function of these forums is quite bad and can’t handle search terms of fewer than three characters, amongst other things (for example, putting the word the into the search box only gives 65 results).

To search the forums better you should use a proper search engine, specifying the site if you can, e.g. 
<search terms> site:forum.affinity.serif.com 

[walt.farrell]

Because the term AI is too short to be part of the search index.

[James Ritson]

9 hours ago, DicownedHawk said:

This is why I can't quite give up  PS yet, i need decontaminate colors.

 

On 10/29/2022 at 9:19 AM, ashf said:

I'd like to request color decontamination filter that Photoshop and Pixelmator has.
It removes unwanted fringe color from the object that the background has been removed.

Hi, colour decontamination is actually performed during selection refinement, there's just no explicit option for it (the selection refinement preview already has it applied). You have to choose New layer or New layer with mask as the output option for it to apply: the Selection and Mask options don't destructively alter pixel content, so you won't get decontamination with those since the process involves modifying pixel colour values.

On 10/30/2022 at 5:52 PM, ashf said:

One in the Filter menu as an independent filter.

I'm not aware of that one, do you mean the option under Layer>Matting?

[Discover Hawk]

  

I tried it but it not work well, the feature is different from PS , for example, the feature will causes loss of hair detail.