转换8bit或者16bit代码python

def convert8bit_(x):
   return 0 if x <= 0 else (255 if x >= 1 else uint8(x * 255 + 0.5))

def convert16bit_(x):
   return 0 if x <= 0 else ((2**16 - 1) if x >= 1 else uint16(x * (2**16 - 1) + 0.5))