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Simple removal of gradients and vignetting


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Gimp Version (does a better job IMHO)

Below are :

Original Image .... PixInsight Modded Image
Gimp Modded Image (exact details) .... Gimp Colour Enhanced Image

Note
The PixInsight stars are not the same colour as the original (and colours are washed out).
The 1st Gimped image has extracted the exact colour details from the original image.
The 2nd Gimped image lifts the original colours (as an option if wished)

Do appreciate that I figured this method by myself ... I'm sure it can be improved.

Original_Image_post-14666-1338773803.jpg.e6042d72ebd067b91fcdb7fcaa65eede.jpgPixInsight_modded-post-14666-133877380313.jpg.88610bc6e8349127ed56cbace490fc6f.jpg

Gimped_Original_Image_Details_(exact).jpg.f709a250d118dc19d86f5bcc3529af36.jpgGimped_Original_Image_Details_(colour_enhanced).jpg.c2320f5c29734ceb412991b733315d6d.jpg


The most important element, is that Gimp enables accurate extraction of the detail, with the option of colour enhancement
... and it doesn't cost a penny.

However, it is thanks to Rikyuu's original work, that guided me to this method 👍

I suggest that I write up the method as a separate tutorial.
Whether it should be stuck is up to the admins
... but as the original LE software is no longer available, and Gimp will be free and with us forever....

🌝

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hi, I'm sure many experts know about this function within PixInsight already, but I just wanted to mention this as a very quick and simple method using this free software from: PixInsight — Downloads

Gimp Version (does a better job IMHO) Below are : Original Image .... PixInsight Modded Image Gimp Modded Image (exact details) .... Gimp Colour Enhanced Image Note The PixInsight s

.....not so useful then I guess!

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On 01/01/2020 at 20:50, Fo_Cuss said:

Gimp Version (does a better job IMHO)

Below are :

Original Image .... PixInsight Modded Image
Gimp Modded Image (exact details) .... Gimp Colour Enhanced Image

Note
The PixInsight stars are not the same colour as the original (and colours are washed out).
The 1st Gimped image has extracted the exact colour details from the original image.
The 2nd Gimped image lifts the original colours (as an option if wished)

Do appreciate that I figured this method by myself ... I'm sure it can be improved.

Original_Image_post-14666-1338773803.jpg.e6042d72ebd067b91fcdb7fcaa65eede.jpgPixInsight_modded-post-14666-133877380313.jpg.88610bc6e8349127ed56cbace490fc6f.jpg

Gimped_Original_Image_Details_(exact).jpg.f709a250d118dc19d86f5bcc3529af36.jpgGimped_Original_Image_Details_(colour_enhanced).jpg.c2320f5c29734ceb412991b733315d6d.jpg


The most important element, is that Gimp enables accurate extraction of the detail, with the option of colour enhancement
... and it doesn't cost a penny.

However, it is thanks to Rikyuu's original work, that guided me to this method 👍

I suggest that I write up the method as a separate tutorial.
Whether it should be stuck is up to the admins
... but as the original LE software is no longer available, and Gimp will be free and with us forever....

🌝

Hi. Did you ever write up any instructions on how to do this in GIMP please?

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