This is a very basic port of the built-in Avisynth filter Tweak. Internally, it uses std.Lut and std.Expr to carry out the adjustments.

• No dithering whatsoever.
• Parameters "sse", "startHue", "endHue", "maxSat", "minSat", "interp", and "dither" don't exist.
• 8..16 bit integer and 32 bit float sample types are supported.

Drop adjust.py someplace where Python can find it, then use import adjust in your scripts.

adjust.Tweak(clip clip[, float hue=0.0, float sat=1.0, float bright=0.0, float cont=1.0, bint coring=True])

Parameters:

• hue

  Adjust the hue. Positive values shift it towards red, while negative values shift it towards green.

  Range: -180.0 .. 180.0

• sat

  Adjust the saturation. Values above 1.0 increase it, while values below 1.0 decrease it. 0.0 removes all colour.

  Range: 0.0 .. 10.0

• bright

  Adjust the brightness. This value is directly added to each luma pixel.

• cont:

  Adjust the contrast. Values above 1.0 increase it, while values below 1.0 decrease it.

  Range: 0.0 .. 10.0

WTFPL.