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Ticket #470 (closed defect: fixed)

Opened 2010-02-03T14:41:44-06:00

Last modified 2010-07-13T16:58:48-05:00

Problems decoding 1-bit LZW data

Reported by: curtis Owned by: melissa
Priority: minor Milestone: bio-formats-4.2
Component: bio-formats Severity: serious
Keywords: Cc:
Blocked By: Blocking:


1-bit LZW data has strange artifacts after decoding.

TiffJAIReader reads the file correctly, but the native TiffReader, which invokes the LZW decompression routine, produces an imperfect decoding.

See tiff/edward/TestDoc2.tif for an example.

Change History

comment:1 Changed 2010-02-03T16:27:58-06:00 by melissa

  • Status changed from new to closed
  • Resolution set to fixed

Duplicate of #468, resolved in r5882. The problem was not with LZW decompression, but rather with how 1-bit pixels were unpacked.

comment:2 Changed 2010-07-09T12:55:02-05:00 by melissa

  • Milestone bio-formats-4.2 deleted

Milestone bio-formats-4.2 deleted

comment:3 Changed 2010-07-13T16:58:48-05:00 by melissa

  • Milestone set to bio-formats-4.2