Fig. 3From: A clinical utility assessment of the automatic measurement method of the quality of Meibomian glandsExemplary input image L GRAY (m,n,i) a and obtained results L RIESZ (m,n,i) b being the convolution for exemplary images L NLOW (m,n,i) with h R mask defined for σ m = 0.05,σ n = 0.05,σ α = 0.4 and its second derivative calculated after variable m Back to article page