REGISTAX versus AVISTACK

this is the main message area for anything solar :)
Post Reply
Pedro

REGISTAX versus AVISTACK

Post by Pedro » Thu Dec 29, 2011 11:58 pm





Tried Registax 6 and Avistack 2 on the same avi file using exactly the same image processing parameters.

Avistack was used for aligning and stacking the images (automatic mode) and the wavelets were applied with Ragistax 6 (both files).

Avistack does a better job but it is very slow (it takes about four times longer to process the avi file). Registax is also very good.

See the pics.

best regards



earl
Almost There...
Almost There...
Posts: 624
Joined: Mon Oct 17, 2011 2:05 am

Re: REGISTAX versus AVISTACK

Post by earl » Fri Dec 30, 2011 12:14 am

I can see the difference. AviStax does appear to do a better job. I still use Registax 5.1. Version 6 crashes on my system and I have had terrible luck using Avistack using auto mode. Guess I will try again with AviStack.

Thanks for posting results



User avatar
solarchat
Site Admin
Site Admin
Posts: 4016
Joined: Sat Feb 01, 2014 3:10 pm
Location: Atlanta, GA USA
Has thanked: 7 times
Been thanked: 97 times
Contact:

Re: REGISTAX versus AVISTACK

Post by solarchat » Fri Dec 30, 2011 1:47 am

They look identical to me. I use Registax 6. I tried avistack a few times but when you have 30 or 40 avis to process from each event, the time required was not practical. By the way, the image is awesome!


Stephen W. Ramsden
Atlanta, GA USA
Founder/Director Charlie Bates Solar Astronomy Project
http://www.solarastronomy.org

User avatar
Cschur
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 3807
Joined: Mon Oct 17, 2011 6:27 pm
Contact:

Re: REGISTAX versus AVISTACK

Post by Cschur » Fri Dec 30, 2011 4:09 am

Pedro, you and I are on the same wavelength on this one. I have been doing extensive testing the past few weeks on both and have come to similar conclusions. They are:

1. AVIstack does a much better job at aligning and stacking images
2. AVi stack takes 2x longer than registax 6 to go from avi to ready to post process.
3. AVistack wavelets is inferior in that it dumps noise all over the images.
4. Registax wavelets is superior in that the images are sharper with less noise.
5. AVI stack an stack AVIs over .99 Mb but registax has never been able to do this. (kills me with DMK51)
6. And the BIGGEST cool thing about avi stack is I can set it up to batch process un attended. Set for the highest number of registration points, max number of quality zones, and let er rip for a few hours. It so far has never messed up a file, and the results are alway better in sharpness.

So here is what I do now: process all my avis in Avistack in batch mode while i go out and run for a few hours, or work on the house. Then post process in Registax wave lets or Photoshop.


Chris Schur

----------------------------------

Birch Mesa Observatory, Payson Arizona

Clear Creek Canyon Observatory, Happy Jack, Arizona

User avatar
marktownley
Librarian
Librarian
Posts: 29216
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 2139 times
Been thanked: 819 times
Contact:

Re: REGISTAX versus AVISTACK

Post by marktownley » Fri Dec 30, 2011 9:19 am

This is a great comparison. I think the differences are subtle and which an individual uses is going to come down to personal preferences. I'm an avistack man myself, though I do apply wavelets in registax5.1. Avistack is slower, however I recently got a brand spanking new all singing and dancing laptop and I have to say that I find now avistack rips through those avi files considerably faster than my older lappy.


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

Pedro

Re: REGISTAX versus AVISTACK

Post by Pedro » Fri Dec 30, 2011 11:50 am

I agree wuth you both. For processing 30Gb of data Registax is more convenient. Batch processing in Avistack is great and you can put it to work for a couple of hours (unattended).

best regards



User avatar
Montana
Librarian
Librarian
Posts: 23781
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK
Has thanked: 2326 times
Been thanked: 795 times

Re: REGISTAX versus AVISTACK

Post by Montana » Fri Dec 30, 2011 12:20 pm

I find I use all three, Avistack takes 20 minutes on my computer to do 1x 1000 image file so if I have 5 pictures I have to go away for a long time and come back but does surface features brilliantly in Ha. I then use the wavelets in Registax. I dread to think if I did an animation of 30 images, that is days and I think my computer would blow up!

For prominences Registax 5 works best for me.

For white light, only Registax 6 has ever worked for me.

Regards
Alexandra



User avatar
swisswalter
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 17951
Joined: Thu Feb 06, 2014 4:28 am
Location: Switzerland
Contact:

Re: REGISTAX versus AVISTACK

Post by swisswalter » Fri Dec 30, 2011 6:57 pm

Hi all

for mee it works the same:

avi stack works fine and can do an un attended batch job

wavelets in Registax are better then in avi stack

prom shots work much better in Registax


sum up: use both ;-), lets join them and let them sell it for a small price. I'm sure that would work, for the greatest sun-fun-stacking-tool on earth. Stephen, as our boss, it's your turn ;-)


Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)

JimLafferty
Almost There...
Almost There...
Posts: 513
Joined: Mon Oct 10, 2011 9:46 pm

Re: REGISTAX versus AVISTACK

Post by JimLafferty » Sat Dec 31, 2011 8:08 am

Interesting...avistack takes less than a quarter the time to process my Avi's than Registax does. It runs at light speed for me. I wonder why it's so much slower for you folks. Do you have the screen update disabled? If not it does take forever.
Jim


Jim Lafferty

Redlands, California

Author of "Imaging Our Sun"



Lunt 100T/Ha

Coronado 90/DS

Luntanado

ES127ED Triplet

ES80ED Triplet

DMK 41 USB Camera

SKYRIS 445M USB 3 CCD Camera

ZWO ASI 120mm Camera



http://scopetrader.com/jimlafferty

User avatar
Montana
Librarian
Librarian
Posts: 23781
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK
Has thanked: 2326 times
Been thanked: 795 times

Re: REGISTAX versus AVISTACK

Post by Montana » Sat Dec 31, 2011 10:24 am

Where's the screen update button?????
please tell..

Alexandra



User avatar
marktownley
Librarian
Librarian
Posts: 29216
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 2139 times
Been thanked: 819 times
Contact:

Re: REGISTAX versus AVISTACK

Post by marktownley » Sat Dec 31, 2011 11:02 am

Where's the screen update button?????
please tell..

Alexandra

It's a small tick box towards the top of the display box in avistack, needs to be un-ticked. However will need to do it for all steps where display screen is active.


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

User avatar
swisswalter
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 17951
Joined: Thu Feb 06, 2014 4:28 am
Location: Switzerland
Contact:

Re: REGISTAX versus AVISTACK

Post by swisswalter » Sat Dec 31, 2011 11:09 am

Hi Alexandra

disabling the screen update is a must. You will see thats speeds up the process enormously


Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)

Pedro

Re: REGISTAX versus AVISTACK

Post by Pedro » Sat Dec 31, 2011 1:16 pm

Hi Jim

Thanks a lot for your input, it surely speeds up the process.

best regards



Pedro

Re: REGISTAX versus AVISTACK

Post by Pedro » Sat Dec 31, 2011 1:54 pm



screen shot Avistack & Registax

Thanks again Jim for your fantastic tip. I am now processing the videos obtained this morning and I have avistack and registax open in my computer. Avistack is being used for batch processing (WL AVIs) and Registax for post-processing (Toshiba R630 i5 4Gb RAM laptop with external screen). See the attached pic. Everything is much faster and images are much better aligned and stacked.

best regards



Ken Crawford
Im an EXPERT!
Im an EXPERT!
Posts: 215
Joined: Sat Oct 15, 2011 2:47 am
Location: Camino, CA
Contact:

Re: REGISTAX versus AVISTACK

Post by Ken Crawford » Sat Dec 31, 2011 3:43 pm

This is very interesing. I just downloaded AVIstack and installed it on my processing machine. My processing machine is setup for high end video work and of course 64 bit. Twice now I have tried this program only to find that it crashes at some pont. These machines are tweaked for processing (64 bit quad core i7 windows 7 - 16gig, ect)

any tips?



Pedro

Re: REGISTAX versus AVISTACK

Post by Pedro » Sat Dec 31, 2011 3:52 pm



FULL SIZE
http://re.apaaweb.com/sun_20111231_FS12 ... _11388.jpg
SUN (20111231) AR11389/AR11388. Takahashi FS128, F/8.1, X2 Barlow, 2" Lunt Solar Wedge, Baader Solar Continuum filter, DMK41, (stack of 250 images).


Hi Ken:

I also use W7 64 bits and Avistack works like a charm. I use a Toshiba R630 laptop R630 i5 quadcore 4Gb RAM. No idea why it crashes in your system.

Avstack is really much better for aligning and stacking images but only for that.

Here's an image aligned in Avistack and processed in Rehistax (wavelets) + PS CS5

best regards



Ken Crawford
Im an EXPERT!
Im an EXPERT!
Posts: 215
Joined: Sat Oct 15, 2011 2:47 am
Location: Camino, CA
Contact:

Re: REGISTAX versus AVISTACK

Post by Ken Crawford » Sat Dec 31, 2011 4:55 pm

Thanks - much be the error trapping is not very good and I am just doing something wrong in the process.

I have never been real happy with RegStax alignment process. I will give it a try - have dual machines side by side for rendering. do you have any pics of your best workflow with AVIstack?



Pedro

Re: REGISTAX versus AVISTACK

Post by Pedro » Sat Dec 31, 2011 5:27 pm

Hi Ken:

Up to now I have used Avistack in full automatic mode. It seems to work fine, at least better than registax as far as alignment and stacking is concerned. The batch processing is great. I just load the avi files (5 to 10 files) and hit batch processing (auto mode). At the end two 16 bit files are saved (FITS and PNG) for each avi file. I use the FITS image in Registax (wavelets) and save a TIF file for post-precssing in PS CS5. Hope this helps.

best



vidman
Almost There...
Almost There...
Posts: 537
Joined: Sat Nov 19, 2011 9:09 pm

Re: REGISTAX versus AVISTACK

Post by vidman » Sat Dec 31, 2011 5:58 pm

I am new to Solar imaging. All my past has been DSO and I have never used Registax or Avistack. I am beginning to use them. i am following this post with interest.

Can someone help me with settings for Wavelets?


Chuck

Solar Noobie learning from the Best group around.

Nighttime Astro-Nut (Not "sissy" stuff...we have to deal with wild animals and cold in the dark...LOL)

Pedro

Re: REGISTAX versus AVISTACK

Post by Pedro » Sat Dec 31, 2011 6:26 pm

The advise should be use wavelets with care. If you don't it is very easy to get an overprocessed image (some do not use wavelets altogether). I normally use only the 3 or 4 first layers. Always change the default value (wavelet tab) from 50 to 500 or 1000. Final processing should be in PS CS (unsharp mask, smart sharp, hipass...).

best



Post Reply