On both the Kodak Document scanners we have at work, the images outputted when using Hardware JPEG Compression with Greyscale can't be opened with AtalaImage (4.0h). The error/exception message

"Corrupt or Invalid Tiff"

 is returned on the constructor AtalaImage img = new AtalaImage(filepath);

The image however opens fine in Microsoft Office Document Imaging where the properties of the image are:

Bits Per Sample: 8,8,8

Compression: JPEG

...

Resolution: 200dpi

 

Is this a known issue?

There are all sorts TIFF's with JPEG compression that are widely considered broken formats.  Many hundreds of different ways to generate these "Old Style" Type 6 JPEG-Compressed TIFF's. We make our best effort to support as many of these as possible, and I think DotImage 5.0 was a step in that direction.  With a completely re-written TIFF Codec that adds support for additional flavors of TIFF and improved performance, I suspect that your images might open if you upgrade to the latest version.

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Bill Bither
Atalasoft

Thanks Bill, sounds like the whole Tiff with JPEG thing is a mess. Ah well...