Automatic Restoration of Old Films by Removal of Line Scratch and Flicker
Shahnas S M , Marian Engineering College , Trivandrum , India; Monisha Menon, Marian Engineering College , Trivandrum , India
A Contrario Methodology, Flicker, Inpainting, Line Scratches, Motion Coherence Criterion, Video Restoration
Restoration of archived film and video are necessary but challenging. The main challenges faced are noise, texture, change in image brightness and loss of original image information due to decay of film material. This paper proposes two algorithm, spatial filtering algorithm and temporal filtering algorithm for line scratch detection. Spatial filtering algorithm uses a contrario methodology for scratch pixel grouping and validating scratch segment, which makes the algorithm robust to noise and texture. Temporal filtering algorithm rejects false detection due to thin vertical structures by using temporal information contained in the image sequence. The detected scratches are then corrected by inpainting. Finally, flicker correction is done to improve the subjective quality of the video. This concept of eliminating line scratch and flicker can be used to restore old video.
|Manuscript Id ||:||IJSTEV3I10120|
|Published in ||:||Volume : 3, Issue : 10|
|Publication Date||:|| 01/05/2017|