1. Method of encoding an HDR image of high dynamic range, comprising down-sampling (DWN) an LDR image and additional data, the LDR image providing a lower dynamic range depiction of the HDR image content and the additional data allowing for reconstructing the HDR image from the LDR image, arranging (PCK), in a frame, the down-sampled LDR image and the down-sampled additional data and encoding (AVC) the frame.