11 operations for controlling color, tone, and mood.
brightness / contrast
Multiply pixel values by a factor. 1.0 = no change.
Code
/bright-1.3/ # 30% brighter
/con-0.8/ # reduce contrast
Range: 0.0–5.0 for both.
gamma
Gamma correction. Default 2.2 (sRGB standard).
Code
/gam-1.8/ # lighten midtones
saturation
Color intensity. 0 = fully desaturated, 1 = no change.
Code
/sat-1.5/ # boost colors
/sat-0/ # remove all color
hue
Rotate the color wheel 0–360 degrees.
Code
/hue-180/ # shift all colors 180 degrees
colorize
Overlay a color with adjustable blend.
Code
/col-FF6600-0.5/ # orange tint at 50%
tint
Duotone effect mapping shadows and highlights to chosen colors.
Code
/tint-FFD700-1A1A2E/ # gold highlights, dark blue shadows
Toggle operations
These have no parameters — just add them to the chain:
Code
/inv/ # invert colors
/gray/ # convert to grayscale
/sepia/ # warm sepia tone
autoenhance
AI-powered automatic improvement.
Code
/auto-0.8/ # 80% strength enhancement