CIStraighten The properties you use to configure a straighten filter. Declarationprotocol CIStraighten : CIFilterProtocol TopicsInstance PropertiesangleinputImage RelationshipsInherits FromCIFilterProtocol See AlsoRelated Documentationstraighten()ProtocolsCIBicubicScaleTransformCIEdgePreserveUpsampleCIFourCoordinateGeometryFilterCIKeystoneCorrectionCombinedCIKeystoneCorrectionHorizontalCIKeystoneCorrectionVerticalCILanczosScaleTransformCIPerspectiveCorrectionCIPerspectiveRotateCIPerspectiveTransformCIPerspectiveTransformWithExtent