Image encoding quantity parameter update method, electronic device, and storage medium

Abstract

The present disclosure provides techniques for image processing. The techniques comprise obtaining a residual coefficient matrix of a target image, the residual coefficient matrix including at least one non-zero coefficient; determining a maximum scan ordinal for the residual coefficient matrix; sequentially reading a predetermined number of residual coefficients in the residual coefficient matrix in a horizontal scanning mode; updating an encoding quantity parameter for the residual coefficient matrix based on an ordinal comparison result between a scan ordinal of each of the read residual coefficients and the maximum scan ordinal and a coefficient value of each of the read residual coefficients; and determining an encoding bit number of the residual coefficient matrix based on a final encoding quantity parameter after reading all residual coefficients in the residual coefficient matrix.