OpenSlideError: 00000000: expected a marker instead of 4880

Benjamin Gilbert bgilbert at
Wed Dec 19 15:22:09 EST 2012

On 12/19/2012 11:02 AM, Toby Cornish wrote:
> ‘OpenSlideError: 00000000: expected a marker instead of 4880’
> This is an SVS JPEG2k/KDU file with embedded ICC and label, macro,
> thumbnail.  Any thoughts?

That's an OpenJPEG error.  We're reading a tile and asking OpenJPEG to 
decode it as a JP2K image, but the tile data appears to be garbage.

Does the Aperio viewer read this slide correctly?  Could you run 
tiffinfo on the file and post its output?

--Benjamin Gilbert

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