2 results about "Coloroid" patented technology

Methods, apparatuses and storage media related to processing of source color volume information are described. Such data includes at least minimum luminance value, maximum luminance value and average luminance value from source data plus optional data which can include color volume x and y chromaticity coordinates for input primaries (e.g., red, green and blue) of the source data and color x and y chromaticity coordinates for the primaries corresponding to the minimum luminance value, average luminance value and maximum luminance value from the source data. Messaging data can also be included to signal active areas in each picture.

Specific syntax elements define a target colour volume resulting from some post-decoding processing on pictures in a video coding system. An encoded video bitstream carries these syntax elements from an encoding device to a decoding device using one or more Supplemental Enhancement Information (SEI) messages, such as a Target Colour Volume Information (TCVI) message or a modified Content Colour Volume (CCV) message. Each SEI message comprises metadata defining a target colour volume and a unique identifier. This allows the decoding device to select one of the SEI messages by comparing its unique identifier with an identifier for a desired post-decoding processing. Upon finding a match, the decoder applies the corresponding post-decoding processing to a decoded picture in accordance with the metadata of the selected target colour volume. An encoding method, a decoding method, an encoding apparatus, and a decoding apparatus are described.