FIELD: imaging technology.
SUBSTANCE: invention relates to means for image processing. The first maximum filter length is determined as equal to 1 for the first subsection and/or the second maximum filter length is determined as equal to 1 for the second subsection when the width of the first subsection is 4 samples or the width of the second subsection is 4 samples, or when the height of the first subsection is 4 samples or the height of the second subsection is 4 samples. Modification is performed based, at least partially, on the first maximum length of the filter, values of no more than one sample of the first subsection, while this sample in the number of no more than one is obtained from a row or column of the first subsection that are perpendicular and adjacent to the border of subsections between the first subsection and the second subsection. The modification is performed based, at least partially, on the second maximum length of the filter, the values of no more than one sample of the second subsection, while this sample, including no more than one, is obtained from a row or column of the second subsection that are perpendicular and adjacent to the border of the subsections between the first subsection and the second subsection.
EFFECT: increase the efficiency of video coding.
31 cl, 21 dwg
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