Search found 118 matches

by han.k
05 Oct 2018, 16:21
Forum: HNSKY feature request
Topic: Request new server command
Replies: 11
Views: 617

Re: Request new server command

Looks good!

Clear skies,
Han
by han.k
03 Oct 2018, 16:16
Forum: ASTAP News
Topic: ASTAP 0.9.124, super fast stacking
Replies: 0
Views: 109

ASTAP 0.9.124, super fast stacking

The image stacking process in ASTAP 0.9.124 is about 8 times faster !!!

Reading a windows setting in a loop slowed down the process significantly . By keeping then in a boolean resulted in a great improvement in stacking speed.

Clear skies,
Han

Download:
http://www.hnsky.org
by han.k
03 Oct 2018, 15:05
Forum: ASTAP General
Topic: Points when adding R, G, B frames.
Replies: 10
Views: 495

Re: Points when adding R, G, B frames.

As an experiment, I tried above. The HFD results are worse. I assume the problem is that you start to spread the star flux. A star of one pixel could be spread on four pixels making the image less sharp. Nevertheless, By doing so, I found a way to make the stacking process MUCH faster. Will release ...
by han.k
03 Oct 2018, 11:29
Forum: ASTAP General
Topic: Points when adding R, G, B frames.
Replies: 10
Views: 495

Re: Points when adding R, G, B frames.

Han, the dots are much smaller than they were. Can you add a separate addition option with sub-pixel precision? With the ability to select the number of sub-pixels. Hello Serg, Can you explain more in detail your request?. At the moment the stacking is pixel based. So the x,y position is calculated...
by han.k
02 Oct 2018, 11:22
Forum: ASTAP General
Topic: Points when adding R, G, B frames.
Replies: 10
Views: 495

Re: Points when adding R, G, B frames.

Hello Serg, Strange, I tought it was okay. Maybe it was the handling of the pedestal factor for the red/blue pixels. Anyhow I made some more improvements this morning. This will be version 0.9.123 and released in an hour maybe. If I add the three stacked colors you send me, I get now this: Han serg_...
by han.k
02 Oct 2018, 00:19
Forum: ASTAP General
Topic: Points when adding R, G, B frames.
Replies: 10
Views: 495

Re: Points when adding R, G, B frames.

Hello Serg, Problem solved in version 0.9.122. The blue spots where the summation of two pixels at one reference location. If you rotate one image (blue) sometimes two pixels fit in the diagonal length of one reference pixel. I count now number of pixels values added and also added a black spot rout...
by han.k
01 Oct 2018, 18:59
Forum: ASTAP General
Topic: Points when adding R, G, B frames.
Replies: 10
Views: 495

Re: Points when adding R, G, B frames.

Hello Serg,

Thanks for the images. Blue it the problem. Blue is also rotated compared with red and green. Interesting test case. I will work on a solution.

Regards, Han
by han.k
01 Oct 2018, 14:58
Forum: ASTAP General
Topic: Black level
Replies: 12
Views: 396

Re: Black level

Okay, I made the change permanent in ASTAP 0.9.120 just uploaded. No other changes.
by han.k
01 Oct 2018, 07:56
Forum: ASTAP General
Topic: Points when adding R, G, B frames.
Replies: 10
Views: 495

Re: Points when adding R, G, B frames.

Hello Serg, When you add a few frames only (with some rotation) sometimes some pixels are missed due to rounding effects. This will disappear if you add more images or you could check-mark the black spot filter. See screen shot. The dark spot filter is only available for mosaic and average stacking....
by han.k
30 Sep 2018, 22:13
Forum: ASTAP General
Topic: Black level
Replies: 12
Views: 396

Re: Black level

Hello Serg, CCDstack and PI calls this extra value a "pedestal". I will make the change of astapX permanent and call this value pedastel. I will add it to the reporting and FITS header. Will finilize it tomorrow as ASTAP 0.9.120. Can you check if the astapX version works well for you? There are more...