Image encoding/decoding method and apparatus and recording medium for storing bitstream

A method of encoding an image, the method comprising:

• dividing a picture into a plurality of coding units;
• constructing a coding unit group including at least one coding unit of the plurality of coding units;
• and
• signaling coding information in units of one coding unit group.

A method of decoding an image, the method comprising:

• determining whether a coding information merge mode is used;
• determining a coding information type and at least one neighboring block among a plurality of neighboring blocks used to derive coding information, when it is determined that the coding information merge mode is used;
• deriving coding information of the current block by using the determined coding information type and at least one of the determined neighboring blocks used to derive the coding information;
• and
• generating a reconstructed block of the current block based on the derived coding information of the current block.

A method of encoding an image, the method comprising:

• determining a coding information type and at least one neighboring block of a plurality of neighboring blocks used to derive coding information;
• deriving coding information of a current block by using the determined coding information type and at least one of the determined neighboring blocks used to derive the coding information;
• and
• generating a reconstructed block of the current block based on the derived coding information of the current block.