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Deep Sky Stacker 4.2.2 is FAST

astrophotography
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#1 ericthemantis

ericthemantis

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Posted 24 August 2019 - 01:12 PM

Just downloaded the latest version released earlier this week. The release notes state (I'm just highlighting the speed improvements):

    -OpenMP speedup of Star Mask image reading code.

    -Huge speedup of final image display by using much larger rectangles and OpenMP speedup of the bitmap extraction code.

    -Speed up star registration by updating progress indicator once every 25 iterations instead of each iteration.

    -Computing Final Picture using Kappa-Sigma Clip processing is now about 50 times faster!

    -Computing Final Picture using Auto Adaptive Weighted Average is now about 43 times faster!

    -Entropy Weighted Average complete stack of 50 lights is now about 20 times faster on my laptop, down from 4hrs 22min to 12min 55 sec.

    -Three times performance improvement in star registration.

    -Miscellaneous other performance tweaks.

 

Trying it out now on some images I want to restack with drizzle and it is COOKIN' .


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#2 lbim

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Posted 24 August 2019 - 01:44 PM

Thanks for sharing info, appreciate this.

LBIM



#3 DuncanM

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Posted 24 August 2019 - 04:42 PM

It is considerably faster than the previous version that I tested, which was considerably slower than Astroart7/64.

 

DSS 422 measured in at ~48secs to stack 22 lights, 5 flats, 5 bias, 5 dark (Orion SSpro 6MP OSC)

 

AA7/64 stacked the above in ~26 seconds. Of course not all the stacking parameters are exactly the same, but I tried to minimize the differences.

 

Workstation = i5 4570 16GB RAM 256GB SSD



#4 17.5Dob

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Posted 25 August 2019 - 02:49 PM

That's for the update !




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