What plugin do I need to use to do this (explained in post)

[FreshMint]

Not sure how to explain this but I guess the picture explains it.

 

What plugin do I need to do that.

 

edit: sorry for the small size. Its a resource I am using for a program.

Edited March 12, 2018 by FreshMint

[BoltBait]

No plugins needed.

 

1) Adjustments > Hue / Saturation: Push saturation slider all the way to the right

2) Adjustments > Posterize: Push the linked sliders all the way to the left

 

That'll get you close.

[FreshMint]

Ah thank you!

It worked specifically for that example but when I try it on other similar images (but with different colors) it doesnt work as well.

Any other ways of doing it?

 

EDIT:I increased the saturation clider to the right and looks a bit like my desired result.

Edited March 12, 2018 by FreshMint

[BoltBait]

Nothing is going to work in every situation.  But, you could try this:

 

1) Adjustments > Hue / Saturation: push saturation slider all the way to the right

 

2) This plugin: https://forums.getpaint.net/topic/16962-segment-image-11/

 

[Ego Eram Reputo]

On 12/25/2017 at 5:12 PM, Ego Eram Reputo said:

Recoloring tool

 

REF: https://www.getpaint.net/doc/latest/RecolorTool.html

 

Basically, what you do is...

 

1. Set the sampling option to Sampling Secondary color in the toolbar.

2. Set the Secondary color to the color you want to change.

3. Set the Primary color to the shade you want to be left with

4. Make the brush width large and paint over the original color with continuous strokes.