[MCN-L] Where is the metadata that defines a jpeg format (standard/optimized/progressive)?

2007-12-14 Thread Richard Urban
Have you tried using JHOVE?   http://hul.harvard.edu/jhove/

You can run it on  a batch of images and then search the resulting  
XML document.  I believe JHOVE is still using the previous version of  
MIX, so you should be able to figure out which attribute contains the  
value for the format.

Richard Urban, Doctoral Student
Graduate School of Library & Information Science
University of Illinois at Urbana-Champaign
rjurban at uiuc.edu
http://isrl.uiuc.edu/~rjurban


On Dec 14, 2007, at 9:00 AM, Real, Will wrote:

> I hope someone on the list can point me in the right direction. I  
> have a
> weird problem that I think I have traced to the compression format  
> used
> in the Photoshop JPEG Options dialog box. There are three Format
> Options: Baseline (Standard), Baseline (Optimized), and  
> Progressive. It
> seems that when the third format option, Progressive, is chosen, the
> image cannot be rendered in my report-writing software (Crystal  
> Reports
> XI).
>
> So far, the only way I have figured out to tell which format the jpeg
> was saved in is to open the image in Photoshop, save it as a copy, and
> examine the dialog box to see which radio button is checked.
>
> What I'd like to be able to do is find this attribute in the  
> metadata so
> I can browse the properties of large numbers of files without  
> having to
> open and save a copy of each one. I have not been able to find the
> attribute in any of the metadata schema that Photoshop uses.
>
> Any help appreciated,
>
> Will
>
> William Real
> Director of Technology Initiatives
> Carnegie Museum of Art
> 4400 Forbes Ave
> Pittsburgh, PA 15213
> 412.622.3267
> 412.622.3112 (fax)
> www.cmoa.org
>
> Join our email list for exhibition and event news:
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[MCN-L] Where is the metadata that defines a jpeg format (standard/optimized/progressive)?

2007-12-14 Thread Real, Will
I hope someone on the list can point me in the right direction. I have a
weird problem that I think I have traced to the compression format used
in the Photoshop JPEG Options dialog box. There are three Format
Options: Baseline (Standard), Baseline (Optimized), and Progressive. It
seems that when the third format option, Progressive, is chosen, the
image cannot be rendered in my report-writing software (Crystal Reports
XI).

So far, the only way I have figured out to tell which format the jpeg
was saved in is to open the image in Photoshop, save it as a copy, and
examine the dialog box to see which radio button is checked.

What I'd like to be able to do is find this attribute in the metadata so
I can browse the properties of large numbers of files without having to
open and save a copy of each one. I have not been able to find the
attribute in any of the metadata schema that Photoshop uses. 

Any help appreciated,

Will

William Real 
Director of Technology Initiatives 
Carnegie Museum of Art 
4400 Forbes Ave 
Pittsburgh, PA 15213 
412.622.3267 
412.622.3112 (fax)
www.cmoa.org
 
Join our email list for exhibition and event news:
http://members.carnegiemuseums.org/email

Member Exclusives!  Insider e-newsletters-plus private previews,
e-invites, free admission, and more when you join online:
http://members.carnegiemuseums.org/SupportCMP