| http://www.w3.org/ns/prov#value | - The video converter in accordance with claim 6 wherein said means for processing said second sequence comprises means for receiving each pixel data element of said second sequence and for producing in response thereto a digital data value of said output sequence having a value proportional to a sum of Y and an element of the set {V,U,-V and -U} wherein Y is a luminance component and U and V are ch
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