位深度(英语:bit depth)简称位深,描述每一储存单位所含有之可用资讯数量。 位深度也可指:

  • 色彩深度,即数字图像中每颗像素能够存储多少比特的色彩信息。
  • 位深度 (音频),即数字音频中每次采样能够存储著多少比特的振幅信息。

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