Controls
Adjust gamma/exposure/black–white points. Drag & drop or upload an image, or use the samples.
Images are processed locally in your browser.
2.20
0.0
0
255
Visualization
Equation (per channel):
1) Normalize & clamp to [0,1] using black (b) & white (w):
x' = clamp((x - b) / (w - b), 0, 1)
2) Gamma & exposure (E in stops → scale s = 2^E):
y' = (x')^(1/γ) · s
3) Map to 8-bit:
y = clamp(round(255 · y'), 0, 255)
γ = 2.20
Exposure = 0.0 stops
Black = 0
White = 255