The current device-specific RGB white balance gain values.
- iOS 8.0+
This property specifies the current red, green, and blue gain values used for white balance. The values can be used to adjust color casts for a given scene. For each channel, only values between
max are supported.
The value can be read at any time, regardless of white balance mode, but can only be set using the
You can observe changes to the value of this property using Key-value observing.