Bug report #601

Georeferencer plugin incorrectly handles PNG files

Added by egor-altlinux-ru - over 17 years ago. Updated over 14 years ago.

Assignee:Magnus Homann
Category:C++ Plugins
Affected QGIS version: Regression?:No
Operating System:Debian Easy fix?:No
Pull Request or Patch supplied: Resolution:fixed
Crashes QGIS or corrupts data: Copied to github as #:10660


I tried 0.8 on Ubuntu and Windows XP with the same result: when the georeferencer plugin is used with a PNG file, the scale and placement are distorted. After I converted the file to TIFF, everything worked well.


#1 Updated by Magnus Homann about 17 years ago

  • Status changed from Open to In Progress

Did you use the linear or helmert transform. Only linear should work for PNG.

#2 Updated by egor-altlinux-ru - about 17 years ago


Yes, I tried it once again with linear transform, and it worked. Maybe some hint should be given to warn those who are trying to run the plugin with helmert?

#3 Updated by Magnus Homann about 17 years ago

  • Resolution set to fixed
  • Status changed from In Progress to Closed

Yes, there is a warning actually in latest 0.8.1 preview. You can download and try:


on XP if you like. Please un-install any old Qgis first!

Closing this bug.

#4 Updated by Anonymous over 14 years ago

Milestone Version 0.8.1 deleted

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