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applyingGainMap(_:)

Create an image that applies a gain map Core Image image to the received Core Image image.

Declaration

func applyingGainMap(_ gainmap: CIImage) -> CIImage

Return Value

An autoreleased CIImage instance or the received image.

Discussion

The gain map image can be obtained by creating a CIImage instance from NSURL/NSData and setting the auxiliaryHDRGainMap option set to @YES.

If the gain map CIImage instance doesn’t have the needed properties metadata, the received image will be returned as-is.

See Also

Instance Methods