Lines Matching refs:gamma
329 gamma=None,
358 gamma
359 Specify a gamma value (create a ``gAMA`` chunk).
423 If specified, the `gamma` parameter must be a positive number
427 appropriately for the gamma specified.
589 self.gamma = gamma
682 if self.gamma is not None:
684 struct.pack("!L", int(round(self.gamma*1e5))))
1857 self.gamma = struct.unpack("!L", data)[0] / 100000.0
1930 for attr in 'gamma transparent background'.split():
3753 parser.add_option("-g", "--gamma",
3755 help="save the specified gamma value")
3834 gamma=options.gamma,
