1. Scratch line detection and restoration based on Sobel operator. (2015) Authors: Huang, LongJun; Liu, QingHua; Tang, Jie; Li, Ping Journal: International journal of grid and utility computing Issue: Volume 6:Number 2(2015) Page Start: 67 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗