vImage.CompositeMode.premultiplied Blends two premultiplied images to produce a premultiplied result. Declarationcase premultiplied See AlsoEnumeration CasesvImage.CompositeMode.nonpremultipliedvImage.CompositeMode.nonpremultipliedToPremultipliedvImage.CompositeMode.premultipliedWithConstantAlpha(_:)