Granted Patent B2

US 12,641,230 · App. 19/301,826 · Granted May 26, 2026

Inventors: Joo Hee Moon (Seoul, KR); Dong Jae Won (Goyang-si, KR); Sung Won Lim (Seoul, KR)

Assignee: Industry Academy Cooperation Foundation of Sejong University

H04N19/117H04N19/13H04N19/176H04N19/436H04N19/82

Abstract

Claims (15)

1 . An image decoding method, comprising:

performing filtering on a luma block in a current picture; and

performing filtering on a chroma block in the current picture,

wherein filtering on the chroma block is performed by clipping pixel values in the chroma block within a minimum and a maximum range;

wherein a maximum normalized luminance value and a minimum normalized luminance value of the current picture are signaled from a bitstream.

2 . An image encoding method, comprising:

performing filtering on a luma block in a current picture; and

performing filtering on a chroma block in the current picture,

wherein filtering on the chroma block is performed by clipping pixel values in the chroma block within a minimum and a maximum range;

wherein a maximum normalized luminance value and a minimum normalized luminance value of the current picture are encoded into a bitstream.

3 . A non-transitory computer-readable recording medium storing a bitstream generated by an image encoding method, the method comprising:

performing filtering on a luma block in a current picture; and

performing filtering on a chroma block in the current picture,

wherein filtering on the chroma block is performed by clipping pixel values in the chroma block within a minimum and a maximum range;

wherein a maximum normalized luminance value and a minimum normalized luminance value of the current picture are encoded into the bitstream.

Priority Claims (2)

Continuity (5)

References Cited (46)