Structure

AVCaptureDevice.WhiteBalanceGains

Structure containing RGB white balance gain values.

Declaration

struct WhiteBalanceGains

Topics

Creating White Balance Gains

init()

The default initializer for white balance gains.

init(redGain: Float, greenGain: Float, blueGain: Float)

Initializes a white balance gain from its red, green, and blue gain components.

Isolating Gain by Color Channel

var blueGain: Float

The blue gain component of the white balance value.

var greenGain: Float

The green gain component of the white balance value.

var redGain: Float

The red gain component of the white balance value.

See Also

Managing the White Balance

func isWhiteBalanceModeSupported(AVCaptureDevice.WhiteBalanceMode) -> Bool

Returns a Boolean value that indicates whether the given white balance mode is supported.

var isAdjustingWhiteBalance: Bool

Indicates whether the devise is currently adjusting the white balance.

func chromaticityValues(for: AVCaptureDevice.WhiteBalanceGains) -> AVCaptureDevice.WhiteBalanceChromaticityValues

Converts device-specific white balance RGB gain values to device-independent chromaticity values.

var deviceWhiteBalanceGains: AVCaptureDevice.WhiteBalanceGains

The current device-specific RGB white balance gain values.

var maxWhiteBalanceGain: Float

The maximum supported value to which a channel in the AVCaptureWhiteBalanceGains may be set.

func deviceWhiteBalanceGains(for: AVCaptureDevice.WhiteBalanceChromaticityValues) -> AVCaptureDevice.WhiteBalanceGains

Converts device-independent chromaticity values to device-specific white balance RGB gain values.

func deviceWhiteBalanceGains(for: AVCaptureDevice.WhiteBalanceTemperatureAndTintValues) -> AVCaptureDevice.WhiteBalanceGains

Converts device-independent temperature and tint values to device-specific white balance RGB gain values.

var grayWorldDeviceWhiteBalanceGains: AVCaptureDevice.WhiteBalanceGains

The current device-specific white balance values required for a neutral gray white point.

func setWhiteBalanceModeLocked(with: AVCaptureDevice.WhiteBalanceGains, completionHandler: ((CMTime) -> Void)?)

Sets white balance to locked mode with the specified deviceWhiteBalanceGains values.

func temperatureAndTintValues(for: AVCaptureDevice.WhiteBalanceGains) -> AVCaptureDevice.WhiteBalanceTemperatureAndTintValues

Converts device-specific white balance RGB gain values to device-independent temperature and tint values.

var isLockingWhiteBalanceWithCustomDeviceGainsSupported: Bool

A Boolean value indicating whether the device supports locking white balance to specific gain values.

class let currentWhiteBalanceGains: AVCaptureDevice.WhiteBalanceGains

A special constant representing the current white balance setting.

struct AVCaptureDevice.WhiteBalanceChromaticityValues

Structure containing CIE 1931 xy chromaticity values.

struct AVCaptureDevice.WhiteBalanceTemperatureAndTintValues

Structure containing temperature and tint values correlated to a white-balance color.

enum AVCaptureDevice.WhiteBalanceMode

Constants to specify the white balance mode of a capture device.