CIToneCurve The properties you use to configure a tone curve filter. Declarationprotocol CIToneCurve : CIFilterProtocol TopicsInstance PropertiesinputImagepoint0point1point2point3point4extrapolate RelationshipsInherits FromCIFilterProtocol See AlsoRelated DocumentationtoneCurve()ProtocolsCIColorAbsoluteDifferenceCIColorClampCIColorControlsCIColorMatrixCIColorPolynomialCIColorThresholdCIColorThresholdOtsuCIDepthToDisparityCIDisparityToDepthCIExposureAdjustCIGammaAdjustCIHueAdjustCILinearToSRGBToneCurveCISRGBToneCurveToLinearCISystemToneMap