Bug report #9735

Raster resampling bilinear produces unexpected results

Added by Paolo Corti over 5 years ago. Updated over 4 years ago.

Status:Closed
Priority:Normal
Assignee:-
Category:Rasters
Affected QGIS version:2.2.0 Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:worksforme
Crashes QGIS or corrupts data:No Copied to github as #:18288

Description

When using the raster resampling option, resulting pixels seem blurred and less accurate if compared with same option used in proprietary software.
See pictures attached.
Tested in Linux/OsX/Windows with 2.0 and 2.2.

bilinear-___.png - Results with a proprietary software (123 KB) Paolo Corti, 2014-03-07 12:48 AM

billinear-qgis.png - Resultrs with QGIS (145 KB) Paolo Corti, 2014-03-07 12:48 AM

History

#1 Updated by Paolo Corti over 5 years ago

Here are the screenshots.

#2 Updated by Nyall Dawson over 4 years ago

  • Status changed from Open to Feedback

This looks very strange - can you share the raster file used?

#3 Updated by Giovanni Manghi over 4 years ago

  • Resolution set to worksforme
  • Status changed from Feedback to Closed

closing for lack of feedback. Please reopen if necessary, possibly attaching sample data. Thanks!

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