Search found 67 matches

by Morten Lerager
09 Feb 2023, 19:35
Forum: Image processing and analysis
Topic: DDP star bloat
Replies: 2
Views: 1114

Re: DDP star bloat

Hi Fabio.
I was hoping for some solution with stretch without clip.
I already use starnet for narrowband nebula and merge the stars from broadband.
Thank you.
by Morten Lerager
06 Feb 2023, 14:04
Forum: Image processing and analysis
Topic: DDP star bloat
Replies: 2
Views: 1114

DDP star bloat

Hi' How can i prevent star from bloat. If I have a stack in a 16bit fits with stars up to 55-60000 they become greater than 16 bit after a DDP. When saved to 16bit most of the stars are 65535. The only way I know to do this, is by carefull curve raising. ( not so good ) Or using "Normalised Tone Str...
by Morten Lerager
02 Feb 2023, 19:03
Forum: Scripts
Topic: Star ADU or value
Replies: 1
Views: 1073

Re: Star ADU or value

Ohh, the function should be named "lumen"
My mentor describes it as the xy gives level of one pixel. ADU return all light from the star.
Thank you. :D
by Morten Lerager
01 Feb 2023, 19:52
Forum: Scripts
Topic: Star ADU or value
Replies: 1
Views: 1073

Star ADU or value

Hi
By using the Image.Stars.Find(n) I seek the ADU.
If I use .stars.adu(i) it returns a huge number. Maybe 32bit. Otherwise using pixel x, y function i get the 16bit value.
The image is 16bit.
Am I doing something wrong here, or is there an logic explanation.
Regards Morten
by Morten Lerager
09 Dec 2022, 21:25
Forum: Image processing and analysis
Topic: Flats flip
Replies: 3
Views: 1073

Re: Flats flip

Great info Fabio.
I will inspect the Asiair fits for ROWORDER bottom up.
If needed I could insert the code by a macro.
by Morten Lerager
09 Dec 2022, 19:17
Forum: Image processing and analysis
Topic: Flats flip
Replies: 3
Views: 1073

Flats flip

When show a flat frame in Asiair I see a little artifact from the sensor. It's show up in the upper right corner at the sub frame. When I open the fits in AA8 the artifact are now in the lower right corner of the picture. Why is that? . Asiair nor AA8 know how the picture was taken. Mount turned off...
by Morten Lerager
16 Oct 2022, 13:05
Forum: Image processing and analysis
Topic: Debayer asi294mc
Replies: 4
Views: 1235

Re: Debayer asi294mc

Oh, that's help me a lot Fabio.
I start all over :D

I just found I have to Use selection nr. 2
Nr. 1=49% , 2=50% , 3=1%, 4=0%
But I read nr. 2 as GBRG and the camera should be RGGB ?
No problem as I getting a color pic. now.
by Morten Lerager
15 Oct 2022, 14:35
Forum: Image processing and analysis
Topic: Debayer asi294mc
Replies: 4
Views: 1235

Re: Debayer asi294mc

Thank You Fabio
I will take som daytime pic. for debayring mode.
The flats don't need debayering, thats new to me.
Is that the same for the other calibration Frames, if I load the in the right slot. ??

Have a nice day. Morten Lerager
by Morten Lerager
14 Oct 2022, 09:51
Forum: Image processing and analysis
Topic: Debayer asi294mc
Replies: 4
Views: 1235

Debayer asi294mc

Hi' Just trying making flats with my new camera asi294mc. The Bayer Pattern should be RGGB when I try a debayering whith the first 2 option the result is "gray ish'". The larst two give a red-ish' one. As you can see when I select RGGB the preview look's gray-ish' But after debayring I get the resul...
by Morten Lerager
17 Sep 2022, 19:04
Forum: Image processing and analysis
Topic: luminans Mask
Replies: 6
Views: 1395

Re: luminans Mask

Thank you Fabio
Now I can keep on trying making dual band osc picture.
:D
by Morten Lerager
17 Sep 2022, 14:45
Forum: Image processing and analysis
Topic: luminans Mask
Replies: 6
Views: 1395

Re: luminans Mask

Thank's Fabio I don't get it I'm afraid. Sure I don't want to change color in the Mask. But the Mask is for edit a color pic. The command color curve works fine with a Mask on it. "the Histogram Stretch is needed anyway because the "mask image" must have exactly a 16 bit dynamic" Don't understand wh...
by Morten Lerager
16 Sep 2022, 15:24
Forum: Image processing and analysis
Topic: luminans Mask
Replies: 6
Views: 1395

Re: luminans Mask

Jep, It's convert automatic RGB to a Luminans so it's easy to use it as a mask. I have found the command I was looking for.. With a color image > color > Luminance. I can use most of the color command with mask. But not the white balance.. Not that I need it, but where to find what is mask sensitive...