Image encoding/decoding method and device, and recording medium having bitstream stored thereon
AssigneeLG Electronics Inc.
InventorsJaehyun LIM, Naeri PARK
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Abstract
An encoding/decoding method and device according to the present disclosure can: obtain a prediction sample of a current block; derive a first parameter for correcting the prediction sample of the current block on the basis of a first reference region for the current block; correct the prediction sample of the current block on the basis of the first parameter; and obtain a first corrected prediction sample.
Claims13
An image decoding method, comprising:
- obtaining a prediction sample of a current block;
- deriving, based on a first reference region for the current block, a first parameter for modifying the prediction sample of the current block;
- and
- obtaining a first modified prediction sample by modifying the prediction sample of the current block based on the first parameter,
- wherein the first reference region includes a neighboring region of the current block, and
- wherein the neighboring region of the current block includes at least one of a top neighboring region, a left neighboring region, a top-left neighboring region, a top-right neighboring region, or a bottom-left neighboring region.
An image encoding method, comprising:
- obtaining a prediction sample of a current block;
- deriving, based on a first reference region for the current block, a first parameter for modifying the prediction sample of the current block;
- and
- obtaining a first modified prediction sample by modifying the prediction sample of the current block based on the first parameter,
- wherein the first reference region includes a neighboring region of the current block, and
- wherein the neighboring region of the current block includes at least one of a top neighboring region, a left neighboring region, a top-left neighboring region, a top-right neighboring region, or a bottom-left neighboring region.
A computer-readable storage medium storing a bitstream generated by an image encoding method, the image encoding method comprising:
- obtaining a prediction sample of a current block;
- deriving, based on a first reference region for the current block, a first parameter for modifying the prediction sample of the current block;
- and
- obtaining a first modified prediction sample by modifying the prediction sample of the current block based on the first parameter,
- wherein the first reference region includes a neighboring region of the current block, and
- wherein the neighboring region of the current block includes at least one of a top neighboring region, a left neighboring region, a top-left neighboring region, a top-right neighboring region, or a bottom-left neighboring region.
Dependencies are inferred from the claim text.