Patent ID: 11062432

Abstract:
The present principles relates to a method and device for reconstructing an High-Dynamic-Range image represented by one reconstructed High-Dynamic-Range luma component (Ŷ′) and two reconstructed High-Dynamic-Range chroma components (Û′, (I)) from a Standard-Dynamic-Range image represented by a Standard-Dynamic-Range luma component (y′, y′1) and two Standard-Dynamic-Range chroma components (u′, v′). The method is characterized in that the method comprises: inverse-mapping (22) said Standard-Dynamic-Range luma component (y′, y′1) to obtain said reconstructed High-Dynamic-Range luma component (Ŷ′); and correcting (33) said two Standard-Dynamic-Range chroma components (u′, v′) to obtain said two reconstructed High-Dynamic-Range chroma components (Û′, (I)) according to said Standard-Dynamic-Range luma component (y′, y′1) and said reconstructed High-Dynamic-Range luma component (Ŷ′).