A study on removal algorithm of flicker noise on old film sequences

Abstract

This document is the study about flicker noise embedded in the old tape or old movie film. The purpose of the study is to improve the identification accuracy and the elimination rate of the noise caused mainly by the film scratches. Based on the traditional gray value and threshold method, a new circuitous detection method is used to adjust the threshold, so that the detection rate of noise is improved. The method is confirmed to have a good effect on the detection and repair of flicker noise and the tape or movie film repaired shows a satisfactory visual effect.