Method for decoding image information, method for encoding image information, and method for transmitting data for image information

A method for encoding image information, the method comprising:

• generating supplemental enhancement information (SEI) messages;
• determining a processing order for a group of types of the SEI messages;
• generating a SEI processing order message indicating the processing order based on the processing order;
• generating a processing order nesting message including at least one nested SEI message in a processing chain specified by the SEI processing order message;
• and
• encoding the image information including the SEI processing order message and the processing order nesting message,
• wherein the SEI processing order message includes wrapping flag information indicating whether a SEI message in a processing chain specified by the SEI processing order message is included in the processing order nesting message.

A method for transmitting data for image information, the method comprising:

• generating a bitstream for the image information,
• transmitting the data comprising the bitstream,
• wherein the bitstream is generated based on generating supplemental enhancement information (SEI) messages, determining a processing order for a group of types of the SEI messages, generating a SEI processing order message indicating the processing order based on the processing order, generating a processing order nesting message including at least one nested SEI message in a processing chain specified by the SEI processing order message, and generating the bitstream for the image information including the SEI processing order message and the processing order nesting message;
• and
• wherein the SEI processing order message includes wrapping flag information indicating whether a SEI message in a processing chain specified by the SEI processing order message is included in the processing order nesting message.