From help-octave-request at bevo dot che dot wisc dot edu Tue Jul 10 18:03:45 2001
Subject: Re:  Image Processing, thank you Mr. Tankus!
From: Peter and Veronica Brandt <pnvbrandt at pacific dot net dot au>
To: Help Octave <help-octave at bevo dot che dot wisc dot edu>
Date: Wed, 11 Jul 2001 09:01:07 +1000


7/8/01 2:48:52 AM, Etienne Grossmann <etienne at anonimo dot isr dot ist dot utl dot pt> 
wrote:

>
>  Hello,
>
>From: Peter and Veronica Brandt <pnvbrandt at pacific dot net dot au>
>
>#  I'm having trouble getting the image processing toolbox from Ariel 
>#  Tankus to work,
>
>#  when using readjpg I get:
>#     sh: djpeg: command not found
>#     error: Unable to read magic number
>
>  This probably means that you don't have the program 'djpeg'
>installed, which is required for readjpg to work. Under the Debian
>Linux distribution, this program is provided by the package
>'libjpeg-progs'.

This works

>
>#  using writepnm or showpnm I get:
>#     error: 'scl' undefined near line 52 column 14 ... in writeppm.m
>
>  Try the 'writeppm' function attached to this mail; this should fix
>showppm too.
>

Thanks, that's much better, the only thing now is that in readpnm.m I 
get error messages about illegal characters after the header, then 
that the file is truncated and cannot be read.  Supressing these 
messages seems to work fine, except that the first pixel is missing 
and a zero added to the end to pad the file out.


>#  Does anyone recognize these?
>
>#  Thanks
>#  Veronica
>
>  Hth,
>
>  Etienne
>
>
>
>

-----------------+:+------------------
Design Assistance
http://home.pacific.net.au/~pnvbrandt/
-----------------+:+-------------------




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