lib/sugarcube/uiimage.rb in sugarcube-0.19.2 vs lib/sugarcube/uiimage.rb in sugarcube-0.19.4

@@ -319,11 +319,11 @@
   # Accepts two options: brightness (default: -0.5) and saturation (default: -0.2)
   # Returns a darkened version of the image.
   def darken(options={})
     filter_name = 'CIColorControls'
     filter_options = {
-      inputBrightness: options[:brightness] || -0.5,
-      inputSaturation: options[:saturation] || -0.2,
+      inputBrightness: options[:brightness] || 0,
+      inputSaturation: options[:saturation] || 0,
     }
 
     cg_input_image = CIImage.alloc.initWithImage(self)
     darken_filter = CIFilter.filterWithName(filter_name)
     raise Exception.new("Filter not found: #{filter_name}") unless darken_filter