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From: sloan@cis.uab.edu (Kenneth Sloan)
Subject: Re: More gray levels out of the screen
Message-ID: <1993Apr6.011605.909@cis.uab.edu>
Organization: CIS, University of Alabama at Birmingham
References: <1993Apr5.040819.14943@kpc.com> <1pp991$t63@cc.tut.fi> <C51C4r.BtG@csc.ti.com>
Date: Tue, 6 Apr 1993 01:16:05 GMT
Lines: 22

In article <C51C4r.BtG@csc.ti.com> rowlands@hc.ti.com (Jon Rowlands) writes:
>
>A few years ago a friend and I took some 256 grey-level photos from
>a 1 bit Mac Plus screen using this method. Displaying all 256 levels
>synchronized to the 60Hz display took about 10 seconds.

Why didn't you create 8 grey-level images, and display them for
1,2,4,8,16,32,64,128... time slices?

This requires the same total exposure time, and the same precision in
timing, but drastically reduces the image-preparation time, no?






-- 
Kenneth Sloan                   Computer and Information Sciences
sloan@cis.uab.edu               University of Alabama at Birmingham
(205) 934-2213                  115A Campbell Hall, UAB Station 
(205) 934-5473 FAX              Birmingham, AL 35294-1170
