share/extensions/color_desaturate.py

   1 import coloreffect
   2
   3 class C(coloreffect.ColorEffect):
   4   def colmod(self,r,g,b):
   5     l = (max(r,g,b)+min(r,g,b))/2
   6     ig=int(round(l))
   7     return '%02x%02x%02x' % (ig,ig,ig)
   8
   9 c = C()
  10 c.affect()