Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!haven!uvaarpa!mcnc!thorin!pooh!skinner
From: skinner@pooh.cs.unc.edu (Andrew Skinner)
Newsgroups: comp.sys.amiga
Subject: Re: grey scale --> HAM picture
Keywords: source, help
Message-ID: <6452@thorin.cs.unc.edu>
Date: 31 Jan 89 18:57:47 GMT
References: <6432@thorin.cs.unc.edu>
Sender: news@thorin.cs.unc.edu
Reply-To: skinner@pooh.UUCP (Andrew Skinner)
Organization: University Of North Carolina, Chapel Hill
Lines: 24

In article <6432@thorin.cs.unc.edu> skinner@unc.cs.unc.edu (Andrew Skinner) writes:
>
>A reasonable approximation would do, so I'd like to be able to convert
>picture files produced at school to HAM mode pictures, to be displayed
>by standard programs.  Does anyone have any free source code I could use
>to convert (8 bit greyscale) images to HAM mode?  I'm sure it would be an

The responses I have gotten (thanks) all tell me that I only have 16 shades of
grey, so HAM won't help.  I know that.  My own question is whether it would
be better to have some near-grey colors in between grey shades (using HAM--I
know they wouldn't really be grey), or to just use the 16 I have.  The second
is easier, and I wouldn't have considered it without the replies I got.  But
I'd like to get as much color resolution as I can, since I want to look at
high quality 3D renderings.  I can probably do the second, given time to do
it, without problem.  I can do the first, too, given HAM docs and, again, time.
(I'm not a graphics beginner.)  What I would like is similar code, that I can
use without taking lots of time from the work that produces the pictures I
want to see.
The other thing I learned from the responses was that HAM didn't give me full
resolution.  I either didn't know that or had forgotten.  I think I will try
to just use the 4 bits I've got, for now.
Thanks again,
andy skinner
skinner@unc.cs.unc.edu