Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!amgraf!huver
From: huver@amgraf.UUCP (Huver)
Newsgroups: comp.sys.amiga
Subject: Re: RGB to HAM IFF
Summary: color conversion for...B/W in HAM?
Message-ID: <333@amgraf.UUCP>
Date: 4 Oct 89 21:30:30 GMT
References: <495@nigel.udel.EDU>
Organization: Amgraf Inc.,  Kansas City
Lines: 25


In article <495@nigel.udel.EDU>, webb@udel.edu (David Webb) forwarded comment
from Fred Mitchell (mitchell@cbmvax.uucp) on converting RGB bitmap to HAM:

  [...bitplane reduction, 16-color palette picking stuff deleted]

But the original question was:
>>
>>   Has anyone worked out a method of converting RGBs to HAM. I have
>>   three B/W images (8 bits/pixel), and I would like to covert them
>>   to a HAM image. If somebody could show me the way I would not writing
>>   the C-code and making it public...

So, is Fred Mitchell at Commodore able to display B/W in HAM mode?  Which
Amiga model was used so that, for example, the previous pixel is 0xFFF and by
HAM we can get 0x999 for the current pixel?  Maybe Dave Haynie knows?  It IS
the rumored Amiga 3000, isn't it?  :^)

For original poster's benefit: HAM is for color, not B/W, display.  Its only
purpose in life is to let you show 4096 colors, not 4096 gray levels, from a
16-entry color palette.



-huver  ...!uunet!amgraf!huver