Video coding method and storage medium

A video encoding method, comprising:

• performing prediction on a current block to obtain a first prediction value of the current block;
• determining a reconstructed sample mode for the current block, wherein the reconstructed sample mode is one of N candidate modes, and the N candidate modes comprise at least one of a top reconstructed sample mode, a left reconstructed sample mode, or a top-and-left reconstructed sample mode;
• and
• determining a second prediction value of the current block according to the reconstructed sample mode for the current block, wherein the second prediction value is obtained by performing illumination compensation on the first prediction value based on the reconstructed sample mode for the current block.

A non-transitory computer storage medium storing a bitstream generated according to an encoding method, wherein the encoding method comprises:

• performing prediction on a current block to obtain a first prediction value of the current block;
• determining a reconstructed sample mode for the current block, wherein the reconstructed sample mode is one of N candidate modes, and the N candidate modes comprise at least one of a top reconstructed sample mode, a left reconstructed sample mode, or a top-and-left reconstructed sample mode;
• and
• determining a second prediction value of the current block according to the reconstructed sample mode for the current block, wherein the second prediction value is obtained by performing illumination compensation on the first prediction value based on the reconstructed sample mode for the current block.