How to change one RGB flash tone to another.

[Lance_G]

Hello.

I’m at a loss....

I’ve been trying this find a way to adjust skin tones in my images by adjusting the RGB values of the original image to standard RGB values for flesh tones. I can’t for the life of me find a way to replace one RGB value in the image to another. I’m using Affinity Photo for desktop and iPad (both). So a way to do it in either would be greatly appreciated!

 

Help!

[DM1]

Have you tried the Colour Replacement brush tool? That allows RGB value setting for modding skin tone with brush strokes. I have also seen skin tones modified with gradient maps and masks to restrain effect to skin areas.

[Lance_G]

9 hours ago, DM1 said:

Have you tried the Colour Replacement brush tool? That allows RGB value setting for modding skin tone with brush strokes. I have also seen skin tones modified with gradient maps and masks to restrain effect to skin areas.

@DM1 It looks like your suggestion is the closest thing that will accomplish what I want to do. I just wish there was a way to compare one measured skin tone RGB value on one layer to another skin tone RGB so that one can be adjusted until they are equivalent. Oh well. For the meantime, this colour replacement brush will do.

Thanks for the suggestion!

[smadell]

Take a look at this YouTube video from PIXimperfect. Although it uses Photoshop, the trchnique can be done in Affinity as well

https://youtu.be/Wvr8LCSuFjE

[Lance_G]

2 minutes ago, smadell said:

Take a look at this YouTube video from PIXimperfect. Although it uses Photoshop, the trchnique can be done in Affinity as well

https://youtu.be/Wvr8LCSuFjE

The  PIXImperfect technique is EXACTLY what I'm trying to figure out how to do in AP. But I'm having difficulty in figuring out how to measure and change exact RGB values.

[smadell]

You’ll want to show the Info panel, and put two “samplers” on your image - one on the standard color and one on the averaged blur area. Set both samplers to show RGB values (in the Info panel) and then adjust until the values are where you want them to be.

[Lance_G]

7 minutes ago, smadell said:

You’ll want to show the Info panel, and put two “samplers” on your image - one on the standard color and one on the averaged blur area. Set both samplers to show RGB values (in the Info panel) and then adjust until the values are where you want them to be.

YES! Exactly what I need. Do you happen to know if the Info Panel is available in the iPad version of AP as well? 

[smadell]

I wouldn’t swear to it,  but I don’t think so.

[Lance_G]

No worries. I use both. So I'll just use the desktop version of AP for this particular task. I greatly appreciate all of the help you guys have provided! Thank you!

[DM1]

If you place an image with desired skin tones into the project you can sample the values from that image and transfer the settings to the desired layer.

Using a gradient map also provides control over skin tone changes.