From: Milton Aupperle <milton@outcastsoft.com>
Date: March 24, 2009 11:47:10 AM MDT
To: Astro_IIDC@yahoogroups.com
Subject: Re: [Astro_IIDC] Astro IIDC 4.03.00 available
Hi Guys;
No problem and glad people are using it.
TTYL..
Milton J. Aupperle
President
ASC - Aupperle Services and Contracting
Mac Software (Drivers, Components and Application) Specialist
#916, 742 Kingsmere Crescent S.W.
Calgary Alberta T2V2H8
1-(403)-453-1624
www.outcastsoft.com
On 24-Mar-09, at 10:15 AM, Jim Chung wrote:
I second the thanks to Milton for his continued refinement.
Quoting Milton Aupperle <milton@outcastsoft.com>:
Hi Folks;
I just posted the Astro IIDC 4.03.00 dmg.
http://www.outcastsoft.com/Astro_IIDC_Installer40300.dmg
The main web site is not updated and 4.02.00 is still the "official"
release version until likely friday.
Please try it out and get back to me soonest if there are any
issues, especially on x86. I would like to release it on Friday
March 27, assuming no issues show up.
The main changes include (form the Read Me First.rtfd" document.
-In the "Others" folder of the dmg installer are three Apple scripts
named "Example All Commands Script", "RecordMultipleFrames Script"
and "RecordMultipleMovies Script". The RecordMultipleMovies and
RecordMultipleFrames can record multiple movies and frames over a
time period automatically. You can customize them by changing the
time durations.
- Fixed a bug where nudging a Selection area with up/down/left/right
arrow keys does not recalculate and update the Pixel Variance value.
- Fixed a bug where clicking on a the 128th or higher selection area
would not find the object (unsigned char overflow).
- The per frame pixel comparison code now checks to see how many
equal minimum areas it finds. If it find more than 2 that match up
but have different locations, it will report this selection as
unmatched and not add this image to the stack. This should eliminate
false positives when stacking frames.
- Added Checkbox named "Histogram expand brightness of all frames
used for pixel alignment." to the Stacking Options window. What this
does is apply a histogram stretch (use 0.5% low and 99.5% on the
high end) to the frame used for alignment, which increases the
brightness and contrast. This was specifically designed for cases
where you have to under exposes the movie or you need to use the
darker portions of the movie for finding good alignment features. It
mainly should be used when trying to do MAP alignment for lunar
terminator type images, as it will cause brightly lit areas to
brighten up significantly. The effect this has will only be
displayed when selecting pixel alignment areas.
- When importing L R G B image alignments in Astro IIDC, I found
that usually one or more of the RGB channels are excessively dark.
So we added an automatic Histogram stretch (0.5% low 99.5% High) to
each of the imported channels to programatically brighten things up.
This will make aligning dark images work a lot easier.
- Added the pop up menu "Dont' blend in a stack if # of frames drops
below xxx of expected." to the stacking options. The pop up menu
runs from 40% to 95% in 5% increments. If the number of frames that
Astro IIDC uses when creating a stack drops below a certain number
of frames, then Astro IIDC will not add this stack into the blended
MAP image. For example let's say you use a selection of 80% and have
picked 150 frames for stacking, so the minimum number of stack
frames is 120. If Astro IIDC creates a stack that only has 100
matchable frames then this stack will not be included in the
resulted MAP image because it falls below our acceptable cut off
limit of 120. If the stack has 120 frames or higher it will be added
in, but not otherwise. This is designed to prevent those situations
where noise or turbulence causes a poor matching of a selection
area, and when these low stack frame stacks are sharpened, you can
easily pick it out from the background.
- Added checkbox "Do not create individual Stack images, just the
blended MAP image." which prevents the intermediate stack frames
from being saved to disk. Note that this can result in no frames
being stacked at all, especially if you have a high percentage for
the "Dont' blend in a stack if # of frames drops below xxx of
expected"
- Changed most text file output so that we use Tab separator instead
of commas, so that importing into spreadsheets is easier.
Have a great week..
Milton Aupperle
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