From: "Ara.T.Howard" <ahoward@...>
Date: 2004-05-19T12:23:50+09:00
Subject: Re: RMagick jp2 problem

On Wed, 19 May 2004, Tim Hunter wrote:

> On Tue, 18 May 2004 18:17:04 -0600, Ara.T.Howard wrote:
> 
> > 
> > any ideas on why this is?
> > 
> Ara, what release of ImageMagick are you using? What release of the jasper
> library?

tim-

thanks for the reply.

/dmsp/reference/build/RMagick-1.5.0 > uname -srm
Linux 2.4.21-15.ELsmp i686

/dmsp/reference/build/RMagick-1.5.0 > cat /etc/redhat-release 
Red Hat Enterprise Linux WS release 3 (Taroon Update 2)

/dmsp/reference/build/RMagick-1.5.0 > ruby -v
ruby 1.8.1 (2003-12-25) [i686-linux]

/dmsp/reference/build/RMagick-1.5.0 > Magick-config --version
6.0.1

/dmsp/reference/build/RMagick-1.5.0 > jasper --version
1.701.0
libjasper 1.701.0

/dmsp/reference/build/RMagick-1.5.0 > ruby -r RMagick -e 'p Magick::Version'
"RMagick 1.5.0"


hopefully all the latest greatest

> Do you get the same results from this command?
> 
> convert image.tiff image.jp2

yes.  this worries me - it's as if the ImageMagick binding to the jasper lib is
incorrectly dealing with compression/quality...  as i said before, the jasper
binary handled perfectly and i get ZERO differences when comparing the bands of
a tiff image and one converted via tifftopnm/jasper...

perhaps a post the ImageMagick group would be more appropriate?


btw.  the ruby bindings are really cool - good job.

cheers.

-a
-- 
===============================================================================
| EMAIL   :: Ara [dot] T [dot] Howard [at] noaa [dot] gov
| PHONE   :: 303.497.6469
| ADDRESS :: E/GC2 325 Broadway, Boulder, CO 80305-3328
| URL     :: http://www.ngdc.noaa.gov/stp/
| "640K ought to be enough for anybody." - Bill Gates, 1981
===============================================================================