JPEG2000 incompatibilities?

[BenEdwards]

I am using GeoExpress 7's command line encoder to create JPEG 2000 images from TIFF master files. We're using the "Large" profile and everything else is defaults.

The resulting JP2 files can be served by ExpressServer and read by the ExpressView browser plug-in just fine, but all the non-LizardTech image viewing tools we try don't like the files. We get errors like "bad file format" when we try to open.

Is it possible that LizardTech's multi-resolution JPEG 2000 format may not be generally supported by other viewers?

[BenEdwards]

I just downloaded kdu_show (which worked for another poster), and sure enough it can load and view the LizardTech JPEG 2000 images we made. (It doesn't solve the overall problem though.)

Also, I did a little research and found out that multi-resolution seems to be fundamental to many aspects of JPEG 2000, so that might not be the issue.

I'd like to hear what someone from LizardTech has to add to this discussion.

[rparker]

Hello,

Have you tried the profile, "Large Image w/out TLM"? Some decoders fail with images when TLM is turned on.

Please let me know if using the profile helps.

[rparker]

From the command line - the largeImage profile is not listed in the -help output.

To use this profile from the command line use:

-profilefile "C:\Program Files\LizardTech\GeoExpress 7_GM\etc\profiles\lti_largeimage_no_tlm.xml"

[BenEdwards]

I tried rparker's suggestion about the profile file. The JPEG 2000 files still cannot be read by any but a few image viewers. We did find an additional viewer that worked though: Paint Shop Pro X 10.01 (but not 10.0).

What we really need to be able to do is put the JPEG 2000 file(s) into PDF files. Acrobat 8 Professional can't open them. The PDFTron API will put them into PDF files, but then Adobe Viewer just shows blank pages when they're opened.

[BenEdwards]

Since this issue is holding us back and our customer is getting anxious, I have started working with David Swanson in LizardTech tech support. I'll post back here if we find a solution.

[BenEdwards]

We're focusing now on just the problem where JPEG 2000 images from GeoExpress encoder won't work in PDF files. PDF files are a convenient form for our web users to download our document images. JPEG 2000 image data has been supported by Adobe Reader/Acrobat for a couple of versions now.

The essence of our problem is that we can take JPEG 2000 files created by our customer's scanner software and make PDFs (using either PDFNet or Acrobat Pro) that work fine . But when we try the same thing with JPEG 2000 images made by GeoExpress, Acrobat can’t view them, they’re just blank images.

Another clue is that the JPEG 2000 files from the geoencoder can’t even be opened by Adobe’s Acrobat Professional. It says the JP2 files are damaged or in the wrong format. But, Acrobat Professional can open the JP2 files that came from our customer's scanners.

LizardTech has escalated this issue to their engineering team and hopefully we'll make new headway this week.