JDK-8000176 : Need automated test for checking scale quality
  • Type: Enhancement
  • Component: client-libs
  • Sub-Component: 2d
  • Affected Version: 8
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2012-09-27
  • Updated: 2014-02-05
  • Resolved: 2012-10-05
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JDK 8
8 b61Fixed
Related Reports
Relates :  
JDK-7188093 - closed/sun/java2d/pipe/ScaleQualityTest.java fails
Description
Current test closed/sun/java2d/pipe/ScaleQualityTest.java which tests scale quality shows very subtle differences between bilinear and bicubic interpolation rendering hints and is manual.
JDK-7188093 needs automated test for checking that results obtained with Xrender (or other native pipeline) are identical to software renderer (BufferedImage).
Comments
A test is developed which renders scaled image with 3 various interpolation rendering hints into BufferedImage as reference and into VolatileImage and compare results with given tolerance (default is 2 from 256 per component values)
27-09-2012