METHOD AND APPARATUS FOR IMAGE FILTERING WITH ADAPTIVE MULTIPLIER COEFFICIENTS, AND TERMINAL DEVICE

摘要

Provided are a method and an apparatus for filtering a set of samples of an image using a filter with adaptive multiplier coefficients, and a terminal device. The method includes: determining values of the multiplier coefficients of the filter, where the multiplier coefficients comprises a central coefficient and remaining coefficients, and for each remaining coefficient, a binary representation of an absolute value of said remaining coefficient with a predefined number L of digits is constrained as including at most N "ones", N equals to 2 or 3; and filtering the set of samples of the image with the filter. With the method or apparatus for image filtering with a filter having adaptive multiplier coefficients, the multiplication complexity during the filtering operation is lowered and the filtering efficiency is thus improved.