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From harmony@ccsg.tau.ac.il Sun Mar 27 10:58:48 1994
Received: from Lindy.Stanford.EDU by ccsg.tau.ac.il (sendmail 920330.SGI/sub910417)
	id AA16302; Sun, 27 Mar 94 05:32:20 +0200
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Date: Sat, 26 Mar 94 19:32:15 PST
From: ralerche@lindy.Stanford.EDU (Robert A. Lerche)
Message-Id: <9403270332.AA22156@lindy.Stanford.EDU>
To: harmony@ccsg.tau.ac.il
In-Reply-To: Michael's message of Sun, 27 Mar 1994 03:12:51 +0200 (IST) <Pine.3.88.9403252201.A13916-0100000@ccsg.tau.ac.il>
Subject: Brush2PS (fwd)

> If I understand you correctly, I have to read each pixel of the picture,
> decide how many gray shades are needed for it, translate each color to a
> number between 0 to 2^bits_per_sample and write the image data according
> to these values. I also assume that for color image, I'll have to split
> each color into its red, green and blue values and convert each value to
> its own gray shade like I did with the b&w image.

Yes, you've got it.  Actually, 0 to (2^bits)-1.  (i.e., 0, 1, 2, or 3
for a 2-bit pixel).
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