[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: image.m using gnuplot
From: |
Joe Koski |
Subject: |
Re: image.m using gnuplot |
Date: |
Wed, 18 Oct 2006 21:54:22 -0600 |
User-agent: |
Microsoft-Entourage/11.2.5.060620 |
on 10/18/06 6:36 PM, Paul Kienzle at address@hidden wrote:
> On Oct 18, 2006, at 9:37 AM, Quentin Spencer wrote:
>
>> Søren Hauberg wrote:
>>> xv, loadimage, or dispæay (for image.m)
>>
>>
>> When gnuplot 4.2 is released, it will be possible to display images in
>> gnuplot. I'm working on a patch to image.m.
>
> A patch is already available. Dan Sebald worked out the initial
> details, and I think Joe Koski updated it. I don't know if I have the
> latest version. Joe can send you his.
>
> - Paul
>
Quentin, Paul,
I'll attach the files to a separate e-mail forwarded directly to Quentin.
It's been a while, but I think that all I had to do to get the routines
working with octave-2.9.x was to replace the __gnuplot_raw__ calls in
__img_gp__.m with __gnuplot_set__ calls. I left the original lines in place
as comments for comparison.
I also played around with the aspect ratio settings in the same routine. It
seems to me that we need a "square pixel" option for displaying photos, but
I didn't see a variable I could easily grab for that purpose, so I did my
experiments by hardwiring the changes. You can see the area to be modified
by looking for # signs further down in __img_gp__.m,
The short but interesting Hough transform test that was contributed a while
back is what I have been using to test the routines. It's included also.
I have not tested all the routines. Let me know if I forgot something.
Joe
- Re: Second attampt at new octave-forge web site, (continued)
- Re: Second attampt at new octave-forge web site, Søren Hauberg, 2006/10/18
- Re: Second attampt at new octave-forge web site, Quentin Spencer, 2006/10/18
- image.m using gnuplot, Paul Kienzle, 2006/10/18
- Re: image.m using gnuplot, Daniel J Sebald, 2006/10/18
- Re: image.m using gnuplot, Quentin Spencer, 2006/10/18
- Re: image.m using gnuplot, Daniel J Sebald, 2006/10/18
- Re: image.m using gnuplot, Daniel J Sebald, 2006/10/18
- Re: image.m using gnuplot,
Joe Koski <=
- Re: Second attampt at new octave-forge web site, Joe Koski, 2006/10/17
Re: Second attampt at new octave-forge web site, Geordie McBain, 2006/10/16
Re: Second attampt at new octave-forge web site, John Swensen, 2006/10/19