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How to enhance color - Printable Version

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How to enhance color - Stephen Liu - 11-23-2023

Hi all,

Please advise how to make the church tower on the photo clearer and darker in color ?

Thanks

Regards

RE: How to enhance color - dinasset - 11-23-2023

For lazy people:

G'MIC Filters: DCP_DEHAZE(strong) or SIMPLE_DEHAZE(delicate)
[attachment=10645]
[attachment=10646]

RE: How to enhance color - sallyanne - 11-23-2023

[attachment=10648]

I replied over at Gimp chat too    (so did dinasset)
G'MIC's Local Contrast Enhance, Equalize Local Histogram, Mighty Detail and Normalize Brightness filters
and I also added a blue sky

RE: How to enhance color - Stephen Liu - 11-23-2023

(11-23-2023, 11:09 AM)sallyanne Wrote:
I replied over at Gimp chat too    (so did dinasset)
G'MIC's Local Contrast Enhance, Equalize Local Histogram, Mighty Detail and Normalize Brightness filters
and I also added a blue sky

Hi @sallyanne

Thanks for your advice.

Filter ->

G'MIC-Qt...

I couldn't find "Local Contrast Enhance"

Regards

RE: How to enhance color - sallyanne - 11-23-2023

@Stephen Liu, Look under details

You can always search a filter at the top of the filters list in GMIC too

RE: How to enhance color - Krikor - 11-23-2023

(11-23-2023, 11:09 AM)sallyanne Wrote:
I replied over at Gimp chat too    (so did dinasset)
G'MIC's Local Contrast Enhance, Equalize Local Histogram, Mighty Detail and Normalize Brightness filters
and I also added a blue sky

Sally, the steps you indicated are great! Wink

Personally I prefer without using Mighty Detail.

Here I practically followed your footsteps but without Mighty Detail.
I was too lazy to do a better finish on the Tower.
[attachment=10652]
Thanks for sharing the steps you used!

RE: How to enhance color - Stephen Liu - 11-24-2023

(11-23-2023, 10:38 PM)sallyanne Wrote: @Stephen Liu, Look under details

You can always search a filter at the top of the filters list in GMIC too
Hi @sallyanne

I have tried search before but without result.
Please refer to attached screenshots

Regards
[attachment=10656 Wrote:sallyanne pid='36747' dateline='1700779103']@Stephen Liu, Look under details

You can always search a filter at the top of the filters list in GMIC too

Hi @sallyanne,


Again
I should search;
Equalize Local Histogram

Please see attached screenshot

But no response on adjusting the slides there

Regards

RE: How to enhance color - sallyanne - 11-24-2023

@ stephen, you may need to update your GMIC but it has been in it for a few versions.
Oh by the way that is 'Local Contrast Enhancement'

RE: How to enhance color - Stephen Liu - 11-24-2023

(11-24-2023, 06:29 AM)sallyanne Wrote: @ stephen, you may need to update your GMIC but it has been in it for a few versions.
Oh by the way that is 'Local Contrast Enhancement'
Hi @sallyanne,

gimp-gmic:
Installed: 2.9.4-4build1

Which filter shall I search?

Regards

RE: How to enhance color - denzjos - 11-24-2023

I used ofnuts 'Luminosity Masks' plugin from Ofnuts. You can find some information about this here :  https://www.gimp-forum.net/Thread-ofn-luminosity-masks
Once installed, you find the plugin here in the gimp menu : Script-Fu / Create New / Luminosity Masks
The plugin create a few layers with different masks according to the brightness in the photo. On this layers you can manipulate different regions on the photo with gimp tools. I used the 'Colours / Levels' and the 'Colours Curves' to darkenadd more color and contrast on the LLL and DDD layers. To darken the manipulated LLL layer, I copied this layer a few times with screen mode 'Multiply' and copied the DDD layer with layer mode 'Screen' and set 20% opacity on this new layer.   
Before:
[attachment=10657]
After:
[attachment=10658]
And a little saturation (Colours / Saturation)
[attachment=10659]