Search found 67 matches

by Morten Lerager
15 Sep 2022, 14:51
Forum: Image processing and analysis
Topic: luminans Mask
Replies: 6
Views: 1389

luminans Mask

Hi Astroart Im trying to get rid of other tools than AA8 When i process, some time I need a "luminans mask". Easy done in GIMP. But I want to stay in AA8. I cant use the Mask tool i gess. So maybe turn a color pic. Into a luminans version. And save as PNG to be loaded as Mask. What's the most correc...
by Morten Lerager
25 Jun 2022, 17:12
Forum: Image processing and analysis
Topic: Flats strange display
Replies: 2
Views: 1055

Re: Flats strange display

Thank's
1) I know the visualization via. Status bar or context menu. But it can't show me the "right" picture, as right after a division with a copy image.
by Morten Lerager
22 Jun 2022, 09:37
Forum: Image processing and analysis
Topic: Flats strange display
Replies: 2
Views: 1055

Flats strange display

Hi' Trying some tests with my Flats. If I Process a master Flat >division with a duplicate... I Get a perfect grayscale like this (No science only math :) FlatDivFlat.jpg If I then change the display setting in any way I can't get back to the same look. How is that ? And next..: The First Image was ...
by Morten Lerager
14 Jun 2022, 19:00
Forum: Image processing and analysis
Topic: Compare 16 vs. 32 Bit
Replies: 2
Views: 997

Re: Compare 16 vs. 32 Bit

Thank you for all your great tips & trick.
And to keep it 16 bit seems to me, the way to go from here.
by Morten Lerager
14 Jun 2022, 18:44
Forum: Image processing and analysis
Topic: calibration frame
Replies: 2
Views: 969

Re: calibration frame

Thank you Fabio
I'll give it a try.
by Morten Lerager
13 Jun 2022, 17:04
Forum: Image processing and analysis
Topic: calibration frame
Replies: 2
Views: 969

calibration frame

Hi Trying to figure out how to make Master frame. In preprocess I can load my dark and flats. I don't load any Lights, resulting in master frame. But.... How about the settings. Normal I use some filtre. Hot pixels and some other. Are the filtre bypassed for calibration frame. Or is it OK to use the...
by Morten Lerager
13 Jun 2022, 06:34
Forum: Image processing and analysis
Topic: Compare 16 vs. 32 Bit
Replies: 2
Views: 997

Compare 16 vs. 32 Bit

Hi' My subs are 16bit fits The stacked fit file are 32 bit How do i easily compare ADU's on this to image. I would also like to compare standard deviation. Thank's Morten Lerager Edit: I will try to pixel edit to value 70000. It could be a work around to get the file in 32bit. Edit Edit: Ohh, a bett...
by Morten Lerager
27 May 2022, 19:51
Forum: Scripts
Topic: StarNet plugin
Replies: 4
Views: 1809

Re: StarNet plugin

Maby this I wrote before
The v2 plugin came up.

viewtopic.php?f=4&t=656&p=2774#p2774
by Morten Lerager
05 Apr 2022, 20:38
Forum: Image processing and analysis
Topic: Extracting Ha OIii
Replies: 2
Views: 992

Re: Extracting Ha OIii

Thanks Rudi
Yes R will be close to Ha.
But OIII is a mix of G & B
It will not work to add G+B.
I gees that's the reason it has to be done before Debayering so only part of GB are taken into account. I know its not the same as with monochrome camera. But the results look good :)
by Morten Lerager
05 Apr 2022, 16:17
Forum: Image processing and analysis
Topic: Extracting Ha OIii
Replies: 2
Views: 992

Extracting Ha OIii

Hi Is it possible to extract Ha and OIII from a OSC image. Astro Pixel Processer and Siril has a dedicated function to do that. It seems it has to been done before debayering. Pixinsight don't have a special funktion to solve it. But it may be done with its pixelmath. How can this be done in Astroar...
by Morten Lerager
22 Mar 2022, 18:57
Forum: Image processing and analysis
Topic: different resolutions
Replies: 2
Views: 936

Re: different resolutions

Some times it helps to read the manual :)
I will try "coregister" but I gess it could be better to down scale by bin 2 first.