Search found 152 matches
- 11 May 2021, 14:25
- Forum: Scripts
- Topic: Pixel processing in SP6
- Replies: 3
- Views: 3232
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...
- 04 May 2021, 20:55
- Forum: Instrumentation
- Topic: Controling two Canon DSLR's simultaneously
- Replies: 9
- Views: 4479
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.
- 07 Apr 2021, 07:56
- Forum: Instrumentation
- Topic: autofocusing noobie q
- Replies: 5
- Views: 2247
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...
- 18 Mar 2021, 07:27
- Forum: Scripts
- Topic: Trying to quantify seeing/image-quality
- Replies: 10
- Views: 3944
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.
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.
- 16 Mar 2021, 05:39
- Forum: Scripts
- Topic: Trying to quantify seeing/image-quality
- Replies: 10
- Views: 3944
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...
- 14 Mar 2021, 09:25
- Forum: Scripts
- Topic: Trying to quantify seeing/image-quality
- Replies: 10
- Views: 3944
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...
- 13 Mar 2021, 19:37
- Forum: Image processing and analysis
- Topic: Difficulties to remove subtle gradients
- Replies: 3
- Views: 1838
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
- 13 Mar 2021, 07:38
- Forum: Image processing and analysis
- Topic: Difficulties to remove subtle gradients
- Replies: 3
- Views: 1838
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 ...
- 03 Mar 2021, 20:22
- Forum: Image processing and analysis
- Topic: Platesolve fails near celestial NP
- Replies: 3
- Views: 1831
Re: Platesolve fails near celestial NP
Solves fine now with SP6 - thanks!
- 21 Feb 2021, 07:48
- Forum: Scripts
- Topic: Trying to quantify seeing/image-quality
- Replies: 10
- Views: 3944
Re: Trying to quantify seeing/image-quality
Thanks Fabio. I’ll give that a try
- 20 Feb 2021, 15:59
- Forum: Scripts
- Topic: Trying to quantify seeing/image-quality
- Replies: 10
- Views: 3944
Re: Trying to quantify seeing/image-quality
I need to be able to select only the best images for stacking in a simple way. For example, I had almost 300 lights from the previous weekend on the same target, and it is a cumbersome task to open and analyse one image at the time in AstroArt. There are some images that I need to discard, mainly du...
- 19 Feb 2021, 07:28
- Forum: Scripts
- Topic: Trying to quantify seeing/image-quality
- Replies: 10
- Views: 3944
Re: Trying to quantify seeing/image-quality
I've updated the script a bit. 'Image resolution, seconds per pixel imageRes = 1.2 NStarsToFind = 1000 MAXPeakValue = 32000 folderName = "C:\Users\rbr\Dropbox\Main\astro\2021\0213\LBN777\" fileMask = "*?1?_L.fit" 'print column headers print "File; Filter; UTC; n_stars; FWHM; aspectratio; background;...