Ticket #1424 (closed defect: fixed)

Opened 7 years ago

Last modified 7 years ago

Signed 64-bit images don't survive IJ2->IJ1->IJ2 round trip

Reported by: aivar Owned by: bdezonia
Priority: minor Milestone: imagej2-b4-plugins
Component: Core Version:
Severity: serious Keywords:
Cc: Blocked By:
Blocking: #1420

Description

Create a test ramp image (File\New\Image) with signed 64-bit, the image looks fine with a grayscale ramp, but if you apply a LUT (Image/Lookup Tables/Fire) the LUT range is distorted.

(This is the last screen capture in luts.png, attached to parent ticket 1420.)

After you apply a LUT the image is not a ramp anymore. Instead it consists of alternating bands of positive and negative values that map to colors 127 and 128.

Change History

comment:1 Changed 7 years ago by bdezonia

  • Milestone changed from imagej-2.0.0-beta5 to imagej-2.0.0-beta4

comment:2 Changed 7 years ago by bdezonia

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

Fixed with commit 6c6327b2c5bd75ea3a3aa2cc4e027e833e804567

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