On Wed, Jun 18, 2008 at 8:15 PM, Andrew Lentvorski <[EMAIL PROTECTED]> wrote:
> Carl Lowenstein wrote:
>>
>> Printer manufacturers have algorithms that store the rendered
>> PostScript image in compressed raster form, and expand the raster data
>> on the way to the print engine.
>
> Which is cool until the image can't be compressed and degrades due to lack
> of memory.
>
> Had one of those printers--do not want again.
>
> There is no substitute for having RAM when rendering postscript.
It must be hard to generate an image that is useful and not
compressible. Useful in the sense that it is mostly a background
(white) with a moderate amount of stuff (black) scattered about. LIke
text on a page. Or even circuit layouts. I'm not sure about things
like the sonar images that I used to work with, as dithered halftone
representations. I think they were amenable to compression by the
simplest imaginable scheme, run-length encoding.
carl
--
carl lowenstein marine physical lab u.c. san diego
[EMAIL PROTECTED]
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