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AssigneeUniversity of Warwick
InventorsFrancesco Banterle, Alessandro Artusi, Kurt Debattista, Patrick Ledda, Gerhard Bonnet, Gavin John Edwards, Alan Chalmers
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A method of producing a compressed video data stream (12) by compressing a stream of relatively high dynamic range video frames (2). A bilateral filter (3) extracts a base frame (4) with luminance information. The base frame (4) and the original frame (2) are used to provide a detail frame (5) with chroma information. A tone mapping operation (6) is selected (7, 11) and applied to the base frame to generate a relatively low dynamic range base frame (8), which is then compressed (9). The detail frame (5) is compressed separately. Final frame data (12) is then created, consisting of the compressed relatively low dynamic range base frame, the compressed detail frame, and stored information in respect of the tone mapping operation that had been applied to the base frame.
A method of producing a compressed video data stream by compressing a stream of relatively high dynamic range video frames, wherein for at least some original video frames in the stream, the method comprises the steps of:
A computer software product comprising instructions stored on a non-transitory medium which when carried out by data processing apparatus will cause the apparatus to be configured to carry out a method of producing a compressed video data stream by compressing a stream of relatively high dynamic range video frames, wherein for at least some original video frames in the stream, the method comprises the steps of:
Dependencies are inferred from the claim text.