Method and apparatus for video encoding with sharing SAO parameters between color components method and apparatus for video decoding with sharing SAO parameters between color components

摘要

The present invention proposes a video encoding method and apparatus therefor, and a video decoding method and apparatus for generating a reconstructed image in which an error with the original image is minimized. Obtains a slice adaptive offset (SAO) parameter for the current slice from the slice header of the received bitstream, and obtains luma SAO usage information for the luma component of the current slice and chroma SAO usage information for the chroma components among the slice SAO parameters. Determine whether to perform SAO adjustment on the luma component of the current slice based on luma SAO usage information, and perform SAO adjustment on the first chroma component and the second chroma component of the current slice based on chroma SAO usage information. Disclosed is a video decoding method involving SAO adjustment that determines whether to perform the same.