From: Alan Friedman <alan@greatarrow.com>

Date: August 11, 2008 3:47:28 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] solar image from Saturday


Thanks Milton.


I seem to have missed the 4.00.04 update - I've just downloaded and installed it. 

It was very late when I started on this - I usually work with the latest Alpha version, but forgot to this time.


Do the 4.01 Alpha version still have a time limit built in?


best,

Alan



Were you having problems with 4.00.04 and you switched to 4.00.03 or had you not tried using 4.00.03 for these types of movies? Stacking wise there is no difference between using 4.00.03 and 4.00.04 except if your using the "Sharpen Frame by" stacking option, which I don't believe you use.




I'd recommend switching to the 4.01.00 A5 build if anyone is using the "Sharpen Frame by" stacking option or "Noise suppression" stacking  option with 8 bit movies, especially on x86 MacIntels.


HTH..


Milton J. Aupperle



On 11-Aug-08, at 1:33 PM, Alan Friedman wrote:

Hi all,


I wanted to share this prominence image captured on Saturday:


http://www.avertedimagination.com/img_pages/towering_inferno.html


I have in the past had a hard time getting my images to stack reliably in AstroIIDC due to the high degree of deformations found frame to frame in daytime seeing. I started working on this picture by hand selecting frames in another program. I was limited to working on a sub section of the frame (DMK 41AF02 - 1280x960 pixel array) - a workaround required in the other software. After several hours of bleary work looking through a few thousand frames I ran a test in AstroIIDC (version 4.00.03) and was happy to discover that it selected, aligned and stacked the frames with very high accuracy. I used a low pixel matching tolerance which helped. The processed results (also done in AstroIIDC) were actually a h