Stars coloring

Image processing, astrometry, photometry, etc.
Post Reply
User avatar
Rudi
Posts: 83
Joined: 08 Jan 2019, 04:47

Stars coloring

Post by Rudi » 15 May 2020, 09:51

Hi,

Is there a way to colorize stars that are near saturated in the center?

I can do it one by one, by adding a smoothed mask, and then for a red star, decrease the green and blue channels.
But for a star rich field, this can be tedious work. Is it possible to automate this with Astroart? Is there a function, that I have overlooked?

Image

A "Colorize Stars" feature would be great, I recon that Astroart could use FWHM for each star, to detect the non saturated color near the edges, and enhance that towards the center?
/Rudi

fabdev
Posts: 219
Joined: 03 Dec 2018, 21:43

Re: Stars coloring

Post by fabdev » 15 May 2020, 16:45

Maybe the fastest way is the Brush tool of the Mask Window, using "Add" mode.

So, just do a single click on every star of the same color, then you may color-correct all stars with a single processing. Does this helps?

User avatar
Rudi
Posts: 83
Joined: 08 Jan 2019, 04:47

Re: Stars coloring

Post by Rudi » 15 May 2020, 17:19

Thanks for the prompt reply Fabio.
Well - yes, that’s actually how I do now. But it is difficult to find an adjustment, that fits well for more than one star. Also, for example with M13, you quickly wear up the mouse button ;-)
/Rudi

User avatar
Rudi
Posts: 83
Joined: 08 Jan 2019, 04:47

Re: Stars coloring

Post by Rudi » 16 May 2020, 10:29

"Code says more than a 1000 words" - or how does the saying go ;-)

I have put together some C# code, I hope You can read it. I will send you a link to the project, source code and all.

Image

Image
/Rudi

Post Reply