Removed quantize from _colorspace() method of pgmagick engine to fix issue with reduced colors and dithering. Thanks hhatto. Refs jazzband#52.

mattaustin · mattaustin · commit 44000f0612d0 · 2011-12-08T09:24:49.000+08:00
diff --git a/sorl/thumbnail/engines/pgmagick_engine.py b/sorl/thumbnail/engines/pgmagick_engine.py
@@ -50,13 +50,10 @@ def _orientation(self, image):
     def _colorspace(self, image, colorspace):
         if colorspace == 'RGB':
             image.type(ImageType.TrueColorMatteType)
-            image.quantizeColorSpace(ColorspaceType.RGBColorspace)
         elif colorspace == 'GRAY':
             image.type(ImageType.GrayscaleMatteType)
-            image.quantizeColorSpace(ColorspaceType.GRAYColorspace)
         else:
             return image
-        image.quantize()
         return image
 
     def _scale(self, image, width, height):
