[lug] Converting postscript images to png or gif

[Riggs, Rob]

This is a very good point. I spoke with Peter Deutsch, ghostscript's
creator, just a few weeks ago and he acknowledged that ghostscript was
pretty bad at low-res rendering. Increasing the resolution that ghostscript
renders at could help considerably.


-----Original Message-----
From: D. Stimits [mailto:stimits at idcomm.com]
Sent: Wednesday, November 14, 2001 5:51 PM
To: lug at lug.boulder.co.us
Subject: Re: [lug] Converting postscript images to png or gif


"J. Wayde Allen" wrote:
> 
> On Tue, 13 Nov 2001, D. Stimits wrote:
> 
> > plots were fairly clear.
> 
> My plots are "fairly clear", just not crisp like I'd like.  I'm beginning
> to suspect the monitor.

Is it a case of aliasing? If so, maybe you just need to tell it to
create a higher resolution image, and then use something like gimp to
reduce the size (poor man's supersampling version of anti-aliasing).

I'm also wondering what color depth and resolution your desktop is set
for; I'm thinking about the possibility that your settings are being
inherited by the program, and influence color depth or other settings in
the plots.

> 
> > Does Star Office work with jpeg's?
> 
> Yes.

Nice thing about jpeg's is that you can control a number of quality
settings. How to do this through gnuplot or octave I don't know, but you
can control quality versus compression trade-offs in most programs (such
as gimp).

D. Stimits, stimits at idcomm.com

> 
> - Wayde
>   (wallen at lug.boulder.co.us)
> 
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