Search found 105 matches

by Rudi
13 May 2021, 04:05
Forum: Scripts
Topic: Pixel processing in SP6
Replies: 3
Views: 292

Re: Pixel processing in SP6

Thanks Fabio. I will proceed with the one dimensional array. Just wanted to ask first ;-)
by Rudi
11 May 2021, 14:25
Forum: Scripts
Topic: Pixel processing in SP6
Replies: 3
Views: 292

Re: Pixel processing in SP6

Hi Fabio, This is great. Is it possible to define a two dimensional array in the scripting language? I've tried: dim(640,480) dim(640;480) dim(640:480) dim(640)(480) (...and many more), but with no luck. I need to store the image bits in an array in order to subtract one image from another in a scri...
by Rudi
04 May 2021, 20:55
Forum: Instrumentation
Topic: Controling two Canon DSLR's simultaneously
Replies: 9
Views: 1309

Re: Controling two Canon DSLR's simultaneously

I controlled two Canon D1000’s simultaneously with two AA instances a couple of years ago with success.
by Rudi
07 Apr 2021, 07:56
Forum: Instrumentation
Topic: autofocusing noobie q
Replies: 5
Views: 173

Re: autofocusing noobie q

I do not usually autofocus for every image, but perhaps every 5 to 6. AutoFocus takes arround 30 seconds on my setup, so doing it every 120 sec image, would "waste" 25% observation time. Doing it every 6'th image, only 4% observation time is lost for focusing. I always let Astroart save focus pos an...
by Rudi
18 Mar 2021, 07:27
Forum: Scripts
Topic: Trying to quantify seeing/image-quality
Replies: 10
Views: 575

Re: Trying to quantify seeing/image-quality

Pascale,

If the star is elongated at an angle of 45°, 135°, 225° or 315°, then |sin alpha|=|cos alpha| and Astroart's x and y components are equal.
by Rudi
16 Mar 2021, 05:39
Forum: Scripts
Topic: Trying to quantify seeing/image-quality
Replies: 10
Views: 575

Re: Trying to quantify seeing/image-quality

Hi @pask, Thanks for the formula. That's a clever way to give one single value for an image. I have also been searching for such a formula. I wonder, if it is possible to get the "true" elongation with a script function, perhaps even also the angle? Not just the x and y components. If the elongation...
by Rudi
14 Mar 2021, 09:25
Forum: Scripts
Topic: Trying to quantify seeing/image-quality
Replies: 10
Views: 575

Re: Trying to quantify seeing/image-quality

Hi again Fabio, I am still using my analysis script, most recently on almost 600 images taken over several nights - it would be an almost impossible task to go through all images manually one by one. Here's the output put into an excel sheet, showing the background levels. I use this to quickly dete...
by Rudi
13 Mar 2021, 19:37
Forum: Image processing and analysis
Topic: Difficulties to remove subtle gradients
Replies: 3
Views: 182

Re: Difficulties to remove subtle gradients

Thanks Fabio. I wasn’t aware of the shörthcuts, that will definetly help. I will look forward to a dark UI though ;-)
by Rudi
13 Mar 2021, 07:38
Forum: Image processing and analysis
Topic: Difficulties to remove subtle gradients
Replies: 3
Views: 182

Difficulties to remove subtle gradients

Hi, Yesterday I was processing an image in Astroart, and when editing the image, I could not see, that there were a subtle gradient on the right side. I think, this is because Astroart is so bright, when viewing the full image. Then my (old) eyes cannot see the gradient in the dark image, it drowns ...
by Rudi
03 Mar 2021, 20:22
Forum: Image processing and analysis
Topic: Platesolve fails near celestial NP
Replies: 3
Views: 253

Re: Platesolve fails near celestial NP

Solves fine now with SP6 - thanks!