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- From: GEORGE WHITE, BIOLOGICAL OCEANOGRAPHY DIVISION
- Newsgroups: comp.text.tex
- Subject: slides from TeX(tures)?
- Message-ID: <01GR9IUVWEDK0007E7@bionet.bio.dfo.ca>
- Date: 17 Nov 92 13:33:22 GMT
- Article-I.D.: bionet.01GR9IUVWEDK0007E7
- Organization: Info-Tex<==>Comp.Text.Tex Gateway
- Lines: 48
- X-Gateway-Source-Info: Mailing List
-
- We have a Mirus 35 m film printer connected to a Mac IIsi with
- Photoshop and TeXtures. This ought to be close to the ideal for
- making slides, but most of our users find it easier to make
- slides the old-fashioned (and expensive) way with 8.5x11 prints on
- film and color acetate. What are we doing wrong?
-
- Here is our current procedure:
-
- 1. use TeXtures to create an Illustrator format EPS file
-
- 2. import this file into Adobe Photoshop at 1300x2000 pixels.
- Photoshop will use ATM to produce a grey-scale image with
- about 16 grey levels and nicely anti-aliased renderings of
- the fonts.
-
- 3. apply a color lookup table (LUT) to convert the grey scale to the
- desired colors. This table has to be constructed to map
- white to the desired background color, black to the desired
- foreground color, and intermediate shades of grey to a mixture
- of the two. This gives essentially an anti-aliased duotone
- image.
-
- The problems are: a different LUT is needed for
- each foreground color, and the final slide must be pieced
- together from little fragments of "duotone" images.
-
- We have looked into using ghostscript to render PostScript files
- created from TeX, but the font quality is poor compared to either
- the old-fashioned manual methods or the ATM-rendered fonts of the
- above procedure. I also contacted the makers of Freedom of Press,
- a commercial PostScript render, but they could not assure me that
- their product would handle the Y&Y PostScript CM fonts.
-
- Color printers are becoming much more widely available, and there
- are significant benefits from anti-aliasing on such devices. Maybe
- it is time for metafont to provide deeper pixels so we can use
- "simple" drivers to obtain better quality output.
-
-
- +-------------------------------------------------------------------------+
- | George N. White III | Internet: GWhite@BIOnet.BIO.DFO.ca |
- | Biological Oceanography Division | DFOnet: BIOnet::GWhite |
- | Bedford Institute of Oceanography | Telemail: (see Sprintmail) |
- | P.O. Box 1006 | phone: 902.426.8509 (lab) |
- | Dartmouth, Nova Scotia | (09:00-17:00) 426.3793 (emergencies)|
- | CANADA B2Y 4A2 | TZ=AST4ADT 426.9388 (FAX) |
- | Sprintmail:(C:usa,A:telemail,P:internet,ID:<gwhite(a)bionet.bio.dfo.ca>)|
- +-------------------------------------------------------------------------+
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