Ticket #1129 (new defect)

Opened 7 years ago

Last modified 7 years ago

IJ2 does not clamp data values like IJ1

Reported by: bdezonia Owned by: bdezonia
Priority: major Milestone: imagej2-b10-compatibility
Component: ImgLib2 Version:
Severity: serious Keywords:
Cc: senseneyj@… Blocked By:
Blocking: #1458

Description

After the release of beta1 in the imagej devel mailing list Justin Senseney reported:

In Beta1 of IJ2, if you open an image like Samples->Boats.gif and multiply by 5, or -5, you’ll see that the resulting intensities are wrapping around the maximum/minimum supported pixels. Another example, create a new 8-bit image of pixel intensity 255 and call Process->Math->Multiply: 1.1, the resulting value is 25. Auto-promotion of images would be useful, but for reference IJ1 just leaves at minimum/maximum intensity value supported in image as appropriate.

Change History

comment:1 Changed 7 years ago by curtis

  • Milestone changed from imagej-2.0.0-beta2 to imagej-2.0.0-beta3

comment:2 Changed 7 years ago by bdezonia

  • Milestone changed from imagej-2.0.0-beta3 to imagej-2.0.0-beta4

comment:3 Changed 7 years ago by bdezonia

  • Blocking 1339 added

comment:4 Changed 7 years ago by bdezonia

  • Blocking 1458 added; 1339 removed
  • Milestone changed from imagej-2.0.0-beta4 to imagej-2.0.0-beta5

comment:5 Changed 7 years ago by curtis

  • Milestone changed from imagej-2.0.0-beta6 to imagej-2.0.0-beta7

comment:6 Changed 7 years ago by curtis

  • Milestone changed from imagej-2.0.0-beta7 to imagej-2.0.0-beta9
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