Patent ID: 6477271
Filing Date: 2002-11-05
Classification: H04N

Abstract:
A method of determining output chromas from a plurality of chroma parameter sets, each chroma parameter set including a set of one or more chroma region parameters indicative of a chroma region and a corresponding set of one or more chroma modification parameters indicative of a chroma modification, the method comprising acts of:receiving the plurality of chroma parameter sets; determining, for each chroma parameter set, a chroma region of a first chroma plane corresponding to the chroma region parameters, the chroma region defining a range of chromas of the chroma plane for which a chroma modification is to be applied, wherein at least two of the determined chroma regions have different shapes; determining, for each chroma parameter set, the chroma modification to be applied to chromas in the chroma region; and for each chroma of the chroma plane, determining an output chroma based on the one or more determined chroma regions and the one or more determined chroma modifications corresponding to each chroma region.