Object illumination can vary based on a range of different factors. Refer to the table below to estimate the object illumination depending on various conditions:
|
Light condition |
Typical lux |
|---|---|
|
Clear, sunny day |
More than 100 000 lux (sun angle 55°) |
|
Sunny day with slight overcast |
70 000 lux |
|
Overcast day |
20 000 lux |
|
Early morning |
500 lux |
|
Twilight |
4 lux |
|
Clear night, full moon |
0.2 lux |
|
Clear night with a moon in any phase other than the full moon |
0.02 lux |
|
Night, moon in clouds |
0.007 lux |
|
Clear night (no moon) |
0.001 lux |
|
Night with slight overcast (no moon) |
0.0007 lux |
|
Dark, cloudy night |
0.00005 lux |
|
Indoors, no windows, with artificial illumination |
100 – 200 lux |
|
Well-illuminated indoor spaces, offices |
200 – 1000 lux |
To compare the illumination conditions of an object with the placement requirements of a camera for a specific type of analytics, navigate to a relevant page:
-
The Face recognition analytics. The camera placement requirements
-
The License plate recognition analytics. The camera placement requirements
-
The Smoke and fire detection analytics. The camera requirements