本文整理汇总了Python中cpngfilters.undo_filter_average方法的典型用法代码示例。如果您正苦于以下问题：Python cpngfilters.undo_filter_average方法的具体用法？Python cpngfilters.undo_filter_average怎么用？Python cpngfilters.undo_filter_average使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类cpngfilters的用法示例。
在下文中一共展示了cpngfilters.undo_filter_average方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: undo_filter_average
# 需要导入模块: import cpngfilters [as 别名]
# 或者: from cpngfilters import undo_filter_average [as 别名]
def undo_filter_average(filter_unit, scanline, previous, result):
"""Undo up filter."""
ai = -filter_unit
for i in range(len(result)):
x = scanline[i]
if ai < 0:
a = 0
else:
a = result[ai]
b = previous[i]
result[i] = (x + ((a + b) >> 1)) & 0xff
ai += 1