White Balance

Overview

White Balance node corrects color casts in an input frame caused by differences between the actual light source and the color temperature that the camera is calibrated for.

Use this node upstream of color-sensitive nodes such as Color Detection or Color Threshold when camera frames have a visible yellow, blue, or orange tint that would otherwise cause color rules to produce inconsistent results.

Input

Input Image

image required

The image frame to correct. Connect this to a camera or upstream processing output.

Auto White Balance

boolean required

When enabled, the node automatically estimates and corrects the color cast in each frame without requiring a manual temperature setting.

Default: true

Use auto mode when lighting conditions vary between frames or when you do not know the exact color temperature of the light source.

White Balance Temperature

integer

Shown only when Auto White Balance is disabled. Manually sets the color temperature to correct for.

Range: 1000 to 10000 (in Kelvin)
Default: 5000

Typical values:

• 2700–3000 — warm incandescent lighting
• 4000–4500 — cool white fluorescent
• 5500–6500 — daylight / overcast sky

Output

Frame Out

image

White-balance-corrected image.