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Ticket #41 (closed defect: fixed)

Opened 2007-03-19T12:22:42-05:00

Last modified 2007-04-19T08:11:05-05:00

QuickTime reader colors for mjpb-encoded data differ from QTJava results

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

Description (last modified by curtis)

The native QuickTime reader handles the mjpb codec (Motion JPEG-B) but the colors come out differently than if the file is read with the legacy QuickTime implementation using QTJava. In particular, the contrast is reduced, as though the color range has been compressed somehow. Unfortunately, simply rescaling the color range (i.e., autocontrast) does not seem to produce the same results given by the QTJava reader either. I  asked about this problem on the quicktime-java mailing list some time ago, but was unable to track down its ultimate cause.


bf-vs-qt.png (295.7 KB) - added by curtis 2007-04-12T14:42:08-05:00.
Illustration of color difference for mjpb between Bio-Formats and QTJava

Change History

comment:1 Changed 2007-03-19T12:23:06-05:00 by curtis

  • Description modified

Changed 2007-04-12T14:42:08-05:00 by curtis

Illustration of color difference for mjpb between Bio-Formats and QTJava

comment:2 Changed 2007-04-19T08:11:05-05:00 by melissa

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

Fixed in r2638.