Movie films are often damaged by aging and multiple playing

which may cause some artifacts on the fihns

such as dust spots

dirt

blotches

film unsteadiness

line scratches

flicker

noises

color variations and blurs. Vertical scratch is one of the artifacts we can often see. To eliminate this artifact

we analyze the character of the line scratch and give a method for detection and removal of it. The proposed algorithm is based on the discrete binary wavelet decomposition

This transformation splits an image into approximation and detail coefficients. The locations of the scratches are gained through analyzing the horizontal and vertical components and using morphologic methods. We compare various algorithms that reconstruct the missing data in the region of the scratch

and choose to restore the scratch regions in the wavelet domain. The results show that the algorithm of scratch detection and removal in this paper is simple and effective.