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Hi, when I changed the colours using colorize, the stars on the left because dull and dim. Is there any method to make them bright and sharp ?

[attachment=5506]

At the moment nothing better or more practical comes to mind, I believe that other users will have better and simpler ideas.

Here my attempt was:
1- I duplicated the layer.
2- I applied Levels Colors-Levels ...: Here the adjustment is personal, to taste. I wasn't thorough, I used 170 - 0.34 - 255
3- Colors - Color to Alpha - Black selected.
4- Colors - Hue-Saturation ... - Here the adjustment is also personal. I think I changed only Hue to 180.
5- I created a mask to make only the left side of the image visible, leaving the right side unchanged.
[attachment=5507]

(01-19-2021, 05:00 PM)meetdilip Wrote: [ -> ]Hi, when I changed the colours using colorize, the stars on the left because dull and dim. Is there any method to make them bright and sharp ?

Use a luminosity mask to exclude them from the Colorize operation?

(01-19-2021, 08:58 PM)Ofnuts Wrote: [ -> ]

(01-19-2021, 05:00 PM)meetdilip Wrote: [ -> ]Hi, when I changed the colours using colorize, the stars on the left because dull and dim. Is there any method to make them bright and sharp ?

Use a luminosity mask to exclude them from the Colorize operation?

I am not sure how to use Luminosity mask. Will try to find it. Thanks

@Krikor Thanks, I will try

While I am still to learn how to do this properly, I found this video on Luminosity mask very helpful. I was able to isolate the bright area using Luminosity mask

https://youtu.be/la-zWPwjuQw

The image below results from the use of ofn-luminosity-masks.
The black background (separate layer) was used for contrast only.
[attachment=5516]
With the result obtained it is possible to make adjustments directly on the original image.
[attachment=5517]

Great !!

Where can I find the " ofn-luminosity-masks " plugin ?

Wondering which software was used to make that wallpaper. Blender ? How can we make repeating patterns with quality like that ?

(01-20-2021, 07:42 PM)meetdilip Wrote: [ -> ]Great !!

Where can I find the " ofn-luminosity-masks " plugin ?

Wondering which software was used to make that wallpaper. Blender ? How can we make repeating patterns with quality like that ?

In the same 'Bat local': https://sourceforge.net/projects/gimp-to...s/scripts/


Reading about the plugin can be found here:
https://www.gimp-forum.net/Thread-ofn-lu...luminosity

and here:
http://gimpchat.com/viewtopic.php?f=9&t=...sks+ofnuts

Thanks. I will try and update.