1. A display, comprising: an input configured to receive image data including meta data comprising at least an indication of a mapping algorithm; a processor configured to identify locations for at least one of tone and gamut mapping in the image data and use the at least an indication of a mapping algorithm to perform at least one of tone and gamut mapping on the identified locations wherein the metadata comprises information specifying a set of one or more special locations of an image represented by the image data and associated with a special mapping algorithm depending on whether the special location in the image represents a location illuminated by one of a plurality of illumination sources; wherein further the metadata comprises tone or gamut parameters; wherein the parameters comprise: one or more reserved colors, said reserved color being designated as not affected by mapping transformations; and one or more special color regions, said special color region being associated with a color-specific mapping; and a display panel connected to the processor and configured to display the image data as mapped or modified by the processor.