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From: shounen-ai <shounen-ai@shounen-ai.com>
Newsgroups: alt.binaries.pictures.boys.retromod
Subject: Re: Distorted pictures
Date: Fri, 20 Feb 2009 11:19:47 -0500
Organization: Not Really
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On Wed, 18 Feb 2009 22:48:46 -0800, curious guy <curious_guy@hush.com>
wrote:
>4s00th <4s00th@hushmail.com> wrote:
>
>>If I might, there were a group of pix that were captured from video
>>with the wrong aspect ratio. There were loud complaints that I'm not
>>certain constitute "discussion."
>
>I have loaded one picture (DSC00655.jpg) into PhotoImpact 4.2. It had
>dimensions of 1,680 by 1,050. I tried reducing the width by several
>different amounts. A 50 percent reduction makes it looks about right.
>Do you know if 50 percent is the correct correction factor? Do you
>want me to upload the 50 percent picture?
The problem is a matter of aspect ratio, not percentage. In fact, if
you were attempting to reduce by a percentage, then it should have
turned out okay as a the same percentage should have been applied to
both of the dimensions keeping them in the same ratio.
Let me see if I can make this easy -- the aspect ratio refers to the
ratio between the height of a picture and the width of the picture.
(Or perhaps they express the ratio the other way around, width to
height -- that part confuses me some!) So if you reduce the height by
50% then you have to reduce the width by 50% to maintain the correct
ratio. If you change one and not the other, or if you change them in
different amounts, the picture ends up looking stretched.
We see this problem in video conversions often. This is because movie
screens have an aspect ratio of 16:9 while TV screens (and older
monitors!) have an aspect ratio of 4:3. And different types of video
also use different aspect ratios -- for example, there is a different
aspect ratio used for VCD files and SVCD files. Go Figure! The
letterbox format is an attempt to reconcile some of these differences
as opposed to the pan-and-scan method that was normally used to
convert movies to the older TV standard, which basically just crops
the picture to fit on the screen, removing stuff from the sides.
I hope this helps you understand. As I said, I would have thought that
if you used a percentage method of reducing or enlarging a picture
that it would have kept the proper aspect ratio -- but apparently your
program does not work that way!
Remember, sexy cartoons or stories depicting children are illegal in Canada, and now in Austrailia since a judge there declared:
Just because they aren't real doesn't mean they aren't real.
Shounen-Ai
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