Astroart Forum » Image processing and Analysis
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Astroart Forum » Image processing and Analysis
3w ago
Thanks Fabio! Just what I needed...
Statistics: Posted by Rudi — Wed Apr 24, 2024 3:43 am ..read more
Astroart Forum » Image processing and Analysis
3w ago
Yes, using a script:
Image.Points.Count
returns how many points are selected.
and:
x,y = Image.Points.Get(i)
returns the coordinates of the #i point.
See in the Guide: Scripts / Function(Images) , "Points and Rectangles" near the end of the page.
Fabio.
Statistics: Posted by fabdev — Wed Apr 24, 2024 12:26 am ..read more
Astroart Forum » Image processing and Analysis
3w ago
Is there a way to get a list of all marked points in an image?
X/Y pixel coordinate will be fine.
Statistics: Posted by Rudi — Sun Apr 21, 2024 3:40 am ..read more
Astroart Forum » Image processing and Analysis
4M ago
I know this is off topic but the SeeStar now has the option for 10, 20 and 30 second images.
Statistics: Posted by TKnightKY — Sat Jan 20, 2024 9:29 pm ..read more
Astroart Forum » Image processing and Analysis
4M ago
Hi Fabio
They are fits images. No derotator, the system takes 10s images and stacks them. Works fine for elevations less than about 80 deg. You can download the individual 10s fits images to use in image processing software such as AA8. The images are also corrected for darks. I’ve done astrometry on some of the images of some 14-15th mag asteroids and can readily achieve residuals less than 1”. In fact I’ll be applying shortly for a MPC Observatory code.
I’ve also been able to determine BVR transformation coefficients using standard fields for use in photometry.
Whilst I like using the sys ..read more
Astroart Forum » Image processing and Analysis
4M ago
Oh, thank you Fabio
The F4 didn't work. I belive the FP in status bar means it is Floating Point
F4 before multiply.jpg
After Multiply by 65535 the FP value is changed in status bar.
And now it's perfect.
F4 after multiply.jpg
Statistics: Posted by Morten Lerager — Fri Jan 19, 2024 4:36 pm ..read more
Astroart Forum » Image processing and Analysis
4M ago
Hi'
When process and save a fits in AA8 > Process in GraXpert save still in 32bit fits.
The file seems corrupt both in AA8 and Siril. ( Can't use DDP correct )
The header from Graexpert ends with :
BG-EXTR = 'GraXpert'
CBG-1 = 4.3567798E-06
CBG-2 = 4.3567798E-06
CBG-3 = 4.3567798E-06
INTP-OPT= 'AI '
HIERARCH SMOOTHING = 0.0
HIERARCH CORR-TYPE = 'Subtraction'
AI-VER = '1.0.1 '
END
If I then load it into the program ASTAP and save it from there.
The header end looks like this :
BG-EXTR = 'GraXpert'
CBG-1 = 4.3567798E-06
CBG-2 = 4.3567798E-06
CBG-3 = 4.3567798E-06
INTP-OPT= 'AI '
HIERARCH SM ..read more
Astroart Forum » Image processing and Analysis
4M ago
Thank's Fabio
I'am back on track
Statistics: Posted by Morten Lerager — Fri Jan 05, 2024 8:34 am ..read more
Astroart Forum » Image processing and Analysis
4M ago
Hi, the visualization is different: V = 930 - 65535 in the first image and V = 930 - 118200 in the second image.
This could be related to the highlighted star, which was saturated, so during the deconvolution the peak went from 65535 to 118200.
It's possible to press CTRL + E to bring both images to the same visualization.
Fabio.
Statistics: Posted by fabdev — Thu Jan 04, 2024 8:53 pm ..read more
Astroart Forum » Image processing and Analysis
4M ago
Hi'
I haven't noticed this before.
After DDP and Deconvolution the whole pic fade out.
The pic show the two stat. before and after Decon.
What is going on ?
M51 Decon.png
Both pic displayed as Min>Max :
M51 Fade.png
Statistics: Posted by Morten Lerager — Wed Jan 03, 2024 7:39 am ..read more