Contents

init(calibratedGrayWhitePoint:blackPoint:gamma:)

Creates a calibrated grayscale color space.

Declaration

init?(calibratedGrayWhitePoint whitePoint: UnsafePointer<CGFloat>, blackPoint: UnsafePointer<CGFloat>?, gamma: CGFloat)

Parameters

  • whitePoint:

    An array of 3 numbers specifying the tristimulus value, in the CIE 1931 XYZ-space, of the diffuse white point.

  • blackPoint:

    An array of 3 numbers specifying the tristimulus value, in CIE 1931 XYZ-space, of the diffuse black point.

  • gamma:

    The gamma value appropriate for the imaging device.

Return Value

A new calibrated gray color space, or NULL if unsuccessful. In Objective-C, you’re responsible for releasing this object by calling CGColorSpaceRelease.

Discussion

Creates a device-independent grayscale color space that represents colors relative to a reference white point. This white point is based on the whitest light that can be generated by the output device. Colors in a device-independent color space should appear the same when displayed on different devices, to the extent that the capabilities of the device allow.

See Also

Creating Color Spaces