Fig. 17
From: Scratch detection of archival films: modeling and trajectory calculation
Comparison of segmentation algorithms; row 1 represents a test image sequence with scratches, row 2 represents a projection level mask, row 3 represents a Otsu pixel level mask, row 3 represents a triangle pixel level mask, row 4 represents a local mean pixel level mask, row 5 represents a local two-dimensional Gaussian weighted pixel level mask, and row 6 represents a local one-dimensional Gaussian weighted pixel level mask