Re: Better jpeg quality

Posted by Harry Parker on Feb 19, 2008; 9:50pm
URL: http://imagej.273.s1.nabble.com/Better-jpeg-quality-tp3697120p3697127.html

Hi Jon,

If IrfanView does what you want, why not use IrfanView?

One option you have is to call IrfanView to do the JPEG compression from within ImageJ.
You could write an ImageJ macro to save your image as a standard TIFF file and then call IrfanView via an exec() macro function call to convert the file to JPEG as you like.

See the exec function description at
    http://rsb.info.nih.gov/ij/developer/macro/functions.html#E
 and the example macros the exec function documentation points to.
 
--  
Harry Parker  
Senior Systems Engineer  
Digital Imaging Systems, Inc.

----- Original Message ----
From: Jon Harman <[hidden email]>
To: [hidden email]
Sent: Tuesday, February 19, 2008 12:58:06 PM
Subject: Better jpeg quality


Hi,

Is
there
a
plugin
to
ImageJ
that
gives
better
jpeg
quality
than
the
Sun
version
of
jpeg
at
quality
of
100?  
For
instance
many
photo
editing
programs
produce
better
quality
at
highest
setting
than
ImageJ.  
There
seems
to
be
no
standard
for
this.  
My
concern
is
with
color
resolution.
 
For
example
Irfanview
allows
you
to
turn
off
jpeg
color
sub
sampling.

Thanks
for
any
info,
Jon





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