JPGs not loading

[Baer,Helen]

Hello DSpacers,

 

For about 6 weeks now, our DSpace won't accept JPGs into the batch utility. Most of them have to be converted to JPEG, which doesn't make a lot of sense. Has anyone else encountered this issue? I personally have worked with images from 3 different sources recently, and all of them had to be converted. At least one of our consortium members has had the same problem, so it's not just our library.

 

Best,

 

Helen

Colorado State University

[Mark H. Wood]

On Wed, Oct 14, 2020 at 09:08:41PM +0000, Baer,Helen wrote:
> For about 6 weeks now, our DSpace won't accept JPGs into the batch utility. Most of them have to be converted to JPEG, which doesn't make a lot of sense. Has anyone else encountered this issue? I personally have worked with images from 3 different sources recently, and all of them had to be converted. At least one of our consortium<https://mountainscholar.org/> members has had the same problem, so it's not just our library.

I'm assuming that you are talking about filename extensions, and that
"convert" here means "rename". I cannot make sense of converting a
file to the format it already has.

The first thing I would do is check the bitstream format registry to
make certain that all of the file extensions I need to have recognized
as JFIF (image/jpeg) are listed for the format JPEG.

OTOH maybe these files *are* in a different format. Are they perhaps
JPEG2000? If you have the 'file' utility, what type does it say one
of these files is? How have you successfully "converted" them?

--
Mark H. Wood
Lead Technology Analyst

University Library
Indiana University - Purdue University Indianapolis
755 W. Michigan Street
Indianapolis, IN 46202
317-274-0749
www.ulib.iupui.edu

[Baer,Helen]

Ok, I'll add it and report back if it worked. Funny you mention ImageMagick -- we had a discussion at our dev meeting yesterday about ImageMagick and the ingest process. We only recently installed ImageMagick, and it doesn't touch ingests -- we just use it to correct problems with thumbnails when they arise.

Out of curiosity, we're also going to run our images through DROID to see what changes when Bridge touches them.

More soon,

Helen

-----Original Message-----
From: Mark H. Wood <mw...@iupui.edu>
Sent: Thursday, October 15, 2020 9:16 AM
To: Baer,Helen <Helen...@colostate.edu>
Subject: Re: [dspace-community] JPGs not loading

On Thu, Oct 15, 2020 at 02:44:26PM +0000, Baer,Helen wrote:
> Thanks for the response. We are "converting" to .jpeg by exporting out of Bridge. This is currently the only way images will load. As I said, it doesn't make any sense to us either ;) We do not use JPEG2000. I checked the format registry, and oddly, .jpg is not in there. Can we just add it?

That is what I suspected. Yes, just add it. (I have never tried adding an extension, but if it doesn't work then we'd all like to know that so we can fix it.)

I don't know Bridge, so I don't have a clue as to what it is doing with the images. It might be useful to know what 'file' makes of the originals and the exports, and what 'jpeginfo' and/or ImageMagick's 'identify' have to say about them.