Computer-assisted analysis of painting brushstrokes: digital image processing for unsupervised extraction of visible features from van Gogh’s works

EURASIP Journal on Image and Video Processing

Table 7 Comparison between orientation, length, and width results for Figure 15

Painting	MSD_α	MSD_α	MSPD_λ	MSPD_λ	MSPD_ϕ	MSPD_ϕ
ID	Li et al.	proposed	Li et al.	proposed	Li et al.	proposed
F218	144	137	1.29	1.06	2.40	0.86
F386	112	94	3.89	3.66	2.75	0.74
F518	47	68	1.44	0.79	2.76	0.45
F538	97	83	1.12	0.38	2.50	0.43

Comparison between orientation, length and width results computed over brushstrokes extracted automatically (using the algorithm in [9] and the one proposed in this paper) and manually extracted ones (from the work by Li et al.) for the patches in Figure 15. Lower values marked in italics are better.