Module srgb::gamma

Functions implementing sRGB gamma compression and expansion formulæ.

Constants

• E_0
  The threshold at which sRGB gamma expansion switches from linear to power function.
• S_0
  The threshold at which sRGB gamma compression switches from linear to power function.

Functions

• compress_normalised
  Performs an sRGB gamma compression on specified linear component value.
• compress_rec709_8bit
  Performs an sRGB gamma compression on specified linear component and encodes result as an integer in the [16, 235] range.
• compress_rec709_10bit
  Performs an Rec.709 gamma compression on specified linear component and encodes result as an integer in the [64, 940] range.
• compress_u8
  Performs an sRGB gamma compression on specified linear component value.
• compress_u8_precise
  Performs an sRGB gamma compression on specified linear component value.
• expand_normalised
  Performs an sRGB gamma expansion on specified normalised component value.
• expand_rec709_8bit
  Performs an Rec.709 gamma expansion on specified component value whose range is [16, 235].
• expand_rec709_10bit
  Performs an Rec.709 gamma expansion on specified component value whose range is [64, 940].
• expand_u8
  Performs an sRGB gamma expansion on specified 8-bit component value.
• linear_from_normalised
  Converts an sRGB colour in normalised representation into linear space.
• linear_from_u8
  Converts a 24-bit sRGB colour (also known as true colour) into linear space.
• normalised_from_linear
  Converts an sRGB colour in linear space to normalised space.
• u8_from_linear
  Converts an sRGB colour in linear space to a 24-bit sRGB colour (also known as true colour).