PixInsight Forum (historical)

PixInsight => General => Topic started by: sparq on 2020 January 14 12:21:26

Title: star blooms
Post by: sparq on 2020 January 14 12:21:26

Can anyone suggest a way to remove star blooms that doesn't involve camera rotation and HDR?  Thnx.

Steve

Title: Re: star blooms
Post by: Stu on 2020 January 14 17:42:38

The only way I can think of is clone stamp, or find another image from another imaging train with a similar resolution and then substitute those pixels in. 

Title: Re: star blooms
Post by: John_Gill on 2020 January 14 23:33:40

Hi,

There is a script call "StarHaloReducer" that might work.  If it is only a couple of big stars, then create a range or star mask that covers the halo(s) and apply and invert the mask.  Now use CurvesTransformation and if the halo is blue, then reduce the blue line until the halo disappears.

space is not black
John

Title: Re: star blooms
Post by: llpastro on 2020 January 15 06:40:18

I use MaximDL.  It requires saving the images as fits, running Maxim, and resaving as xisf.  Cumbersome but effective.  I use BatchFormatConversion to convert the formats.  I do this after calibration and running CosmeticCorrection and just before alignment.

Larry