Samsung EC-ST200FBPBCA - Manual (Page 73)

Shooting options 72
Adjusting brightness and color
Defining your own White Balance
You can customize the White Balance by capturing a photo of
a white surface, such as a piece of paper, under the lighting
conditions in which you intend to capture a photo. The White
Balance feature will help you to match the colors in your photo
with the actual scene.
1
In Shooting mode, press [ ].
2
Select White Balance → Custom Set.
3
Aim the lens at a piece of white paper, and then press
[Shutter].