Lighting & White Balance Check
Get real-time analysis of your camera's lighting conditions. See a brightness histogram, average brightness score, and estimated color temperature — all computed locally via Canvas.
This test analyzes each video frame to compute a brightness histogram (0–255), average brightness, and estimated color temperature in Kelvin.
Ideal mean brightness for video calls falls between 100 and 180 out of 255; below 40 is too dark, above 220 is overexposed.
Permission Required
We need access to your camera to test it. No video leaves your browser.
What Do Your Results Mean?
| Result | Range | Meaning |
|---|---|---|
| Good | Mean brightness 100–180 | Your lighting is well-balanced for video calls and recordings. |
| Warning | Mean brightness 40–99 or 181–220 | Slightly too dark or bright. Adjust your light source position or intensity. |
| Bad | Mean brightness below 40 or above 220 | Severely underexposed or overexposed. Add a desk lamp or reduce direct light on the lens. |
Common Issues and How to Fix Them
Histogram is bunched to the left (dark)
Add a front-facing light source such as a desk lamp or ring light. Avoid backlighting from windows behind you.
Color temperature reads very warm (below 3500K)
Switch to a daylight-balanced bulb (5000–6500K) or move closer to a window with natural light.