wwp@yahoogroups.com:
Re: My "work in progress" from Chicago ...
Victor Zaveduk 2004-Mar-27 17:07:00
Andrew,
Thanks for the comments/critiques. I'll try pushing the file size down to
6000x3000. I think I did try that earlier, but if I recall it felt like it
was about the same result as 7200 with a bit higher compression ... that is,
smaller image, less compression to show same detail level as larger image
with slightly more compression. Still, it's worth trying again, especially
now that I have a few more options to play with.
No lack of RAM here. :) Somehow I suspect anyone with only 128 Mb of RAM
is probably going to be looking at lower res versions, not these that are
intended for full screen. But, you've looked more closely than I have at
the work of others, and if 6000 is a common figure, then 6000 is what I'll
aim for.
Yes, the individual images are pretty well detailed, so it surprises me as
to how much softening appears in the viewer ... even at compression settings
of 100.
Tried setting compression to 1 for top/bottom. No appreciable change in
size. I guess the JPEG routines pretty much treated 100% black image the
same regardless of compression ratio. Too bad, was hoping that one would
have a larger effect.
Thanks for all the comments ...
Victor
-----Original Message-----
From: Andrew [mailto:#removed#]
Sent: Saturday, March 27, 2004 10:22 AM
To: #removed#
Subject: Re: My "work in progress" from Chicago ...
Victor,
You have a lot of space to make it smaller and sharper ;-)
First I need to note the known fact - if QuickTime player founds that there
are not enough RAM to decompress a movie it shrinks it. With my old notebook
equiped with 128 MB of RAM your movie looks realy not sharp enough. I just
checked the images it contains they are OK - very detailed. So 128 MB is not
enough to prview your movie without quality degradations. QuickTime player
works in this way.
I could sugest you the next:
1. For full screens is more than enough 3000x6000 panoramas. I just seen a
few fullscreens of well known panomakers - they don't use larger sizes on
the web. Scale down your panorama in PhotoShop from 3600x7200 to 3000x7200
pixels using bicubic interpolator (-30% in file size);
2. Compress top and bottom tiles with quality 1 ( -100 KB ) and other with
65.
I believe your movie could be around 1 MB in size while preserving a good
quality.
=Andrew Jakowleff
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