def hsv(self):
"""
Color value expressed as an HSV triplet
"""
if 'hsva' not in self._cache:
self._cache['hsv'] = ct.rgb2hsv(self.rgb)
return self._cache['hsv']
def hsv(self):
if 'hsva' not in self._cache:
self._cache['hsv'] = ct.rgb2hsv(self.rgb)
return self._cache['hsv']