Deep Examplar-based Colorization

Iizuka et al. [2016]	Lasson et al. [2016]	Zhange et al. [2016]	Ours with Random Reference	Ours with Top 1 Reference

Fooling Rate = 0.00	Fooling Rate = 0.36	Fooling Rate = 0.33	Fooling Rate = 0.33	Fooling Rate = 0.50

Fooling Rate = 0.13	Fooling Rate = 0.24	Fooling Rate = 0.30	Fooling Rate = 0.17	Fooling Rate = 0.19

Fooling Rate = 0.13	Fooling Rate = 0.12	Fooling Rate = 0.15	Fooling Rate = 0.08	Fooling Rate = 0.12

Fooling Rate = 0.22	Fooling Rate = 0.12	Fooling Rate = 0.59	Fooling Rate = 0.21	Fooling Rate = 0.42

Fooling Rate = 0.04	Fooling Rate = 0.16	Fooling Rate = 0.30	Fooling Rate = 0.33	Fooling Rate = 0.46

Fooling Rate = 0.09	Fooling Rate = 0.16	Fooling Rate = 0.00	Fooling Rate = 0.25	Fooling Rate = 0.42

Fooling Rate = 0.22	Fooling Rate = 0.16	Fooling Rate = 0.15	Fooling Rate = 0.00	Fooling Rate = 0.27

Fooling Rate = 0.09	Fooling Rate = 0.16	Fooling Rate = 0.30	Fooling Rate = 0.17	Fooling Rate = 0.65

Fooling Rate = 0.26	Fooling Rate = 0.36	Fooling Rate = 0.19	Fooling Rate = 0.29	Fooling Rate = 0.27

Fooling Rate = 0.13	Fooling Rate = 0.32	Fooling Rate = 0.22	Fooling Rate = 0.33	Fooling Rate = 0.46

Fooling Rate = 0.36	Fooling Rate = 0.04	Fooling Rate = 0.15	Fooling Rate = 0.48	Fooling Rate = 0.08

Fooling Rate = 0.44	Fooling Rate = 0.44	Fooling Rate = 0.50	Fooling Rate = 0.35	Fooling Rate = 0.67

Fooling Rate = 0.64	Fooling Rate = 0.56	Fooling Rate = 0.69	Fooling Rate = 0.78	Fooling Rate = 0.58

Fooling Rate = 0.52	Fooling Rate = 0.30	Fooling Rate = 0.58	Fooling Rate = 0.65	Fooling Rate = 0.71

Fooling Rate = 0.28	Fooling Rate = 0.30	Fooling Rate = 0.77	Fooling Rate = 0.13	Fooling Rate = 0.54

Fooling Rate = 0.08	Fooling Rate = 0.00	Fooling Rate = 0.00	Fooling Rate = 0.00	Fooling Rate = 0.17

Fooling Rate = 0.16	Fooling Rate = 0.07	Fooling Rate = 0.15	Fooling Rate = 0.04	Fooling Rate = 0.25

Fooling Rate = 0.32	Fooling Rate = 0.33	Fooling Rate = 0.50	Fooling Rate = 0.04	Fooling Rate = 0.50

Fooling Rate = 0.24	Fooling Rate = 0.11	Fooling Rate = 0.35	Fooling Rate = 0.00	Fooling Rate = 0.29

Fooling Rate = 0.08	Fooling Rate = 0.00	Fooling Rate = 0.19	Fooling Rate = 0.04	Fooling Rate = 0.13

Fooling Rate = 0.26	Fooling Rate = 0.50	Fooling Rate = 0.71	Fooling Rate = 0.32	Fooling Rate = 0.87

Fooling Rate = 0.19	Fooling Rate = 0.23	Fooling Rate = 0.29	Fooling Rate = 0.16	Fooling Rate = 0.22

Fooling Rate = 0.33	Fooling Rate = 0.46	Fooling Rate = 0.42	Fooling Rate = 0.28	Fooling Rate = 0.78

Fooling Rate = 0.00	Fooling Rate = 0.08	Fooling Rate = 0.04	Fooling Rate = 0.16	Fooling Rate = 0.39

Fooling Rate = 0.41	Fooling Rate = 0.23	Fooling Rate = 0.46	Fooling Rate = 0.08	Fooling Rate = 0.04

Fooling Rate = 0.48	Fooling Rate = 0.19	Fooling Rate = 0.50	Fooling Rate = 0.28	Fooling Rate = 0.78

Fooling Rate = 0.04	Fooling Rate = 0.04	Fooling Rate = 0.21	Fooling Rate = 0.08	Fooling Rate = 0.00

Fooling Rate = 0.30	Fooling Rate = 0.42	Fooling Rate = 0.33	Fooling Rate = 0.40	Fooling Rate = 0.52

Fooling Rate = 0.15	Fooling Rate = 0.23	Fooling Rate = 0.46	Fooling Rate = 0.00	Fooling Rate = 0.04

Fooling Rate = 0.22	Fooling Rate = 0.38	Fooling Rate = 0.42	Fooling Rate = 0.04	Fooling Rate = 0.48

Fooling Rate = 0.23	Fooling Rate = 0.29	Fooling Rate = 0.22	Fooling Rate = 0.19	Fooling Rate = 0.64

Fooling Rate = 0.46	Fooling Rate = 0.67	Fooling Rate = 0.91	Fooling Rate = 0.63	Fooling Rate = 0.36

Fooling Rate = 0.15	Fooling Rate = 0.29	Fooling Rate = 0.09	Fooling Rate = 0.19	Fooling Rate = 0.12

Fooling Rate = 0.38	Fooling Rate = 0.42	Fooling Rate = 0.65	Fooling Rate = 0.07	Fooling Rate = 0.72

Fooling Rate = 0.12	Fooling Rate = 0.21	Fooling Rate = 0.26	Fooling Rate = 0.15	Fooling Rate = 0.48

Fooling Rate = 0.12	Fooling Rate = 0.17	Fooling Rate = 0.17	Fooling Rate = 0.11	Fooling Rate = 0.08

Fooling Rate = 0.27	Fooling Rate = 0.08	Fooling Rate = 0.26	Fooling Rate = 0.22	Fooling Rate = 0.48

Fooling Rate = 0.08	Fooling Rate = 0.13	Fooling Rate = 0.17	Fooling Rate = 0.11	Fooling Rate = 0.12

Fooling Rate = 0.23	Fooling Rate = 0.21	Fooling Rate = 0.13	Fooling Rate = 0.07	Fooling Rate = 0.32

Fooling Rate = 0.92	Fooling Rate = 0.67	Fooling Rate = 1.00	Fooling Rate = 0.89	Fooling Rate = 0.76

Fooling Rate = 0.63	Fooling Rate = 0.74	Fooling Rate = 0.76	Fooling Rate = 0.31	Fooling Rate = 0.74

Fooling Rate = 0.25	Fooling Rate = 0.13	Fooling Rate = 0.52	Fooling Rate = 0.27	Fooling Rate = 0.19

Fooling Rate = 0.13	Fooling Rate = 0.04	Fooling Rate = 0.16	Fooling Rate = 0.04	Fooling Rate = 0.11

Fooling Rate = 0.08	Fooling Rate = 0.09	Fooling Rate = 0.20	Fooling Rate = 0.27	Fooling Rate = 0.33

Fooling Rate = 0.08	Fooling Rate = 0.22	Fooling Rate = 0.40	Fooling Rate = 0.15	Fooling Rate = 0.07

Fooling Rate = 0.17	Fooling Rate = 0.13	Fooling Rate = 0.20	Fooling Rate = 0.40	Fooling Rate = 0.52

Fooling Rate = 0.25	Fooling Rate = 0.17	Fooling Rate = 0.56	Fooling Rate = 0.15	Fooling Rate = 0.56

Fooling Rate = 0.42	Fooling Rate = 0.43	Fooling Rate = 0.28	Fooling Rate = 0.23	Fooling Rate = 0.11

Fooling Rate = 0.33	Fooling Rate = 0.13	Fooling Rate = 0.52	Fooling Rate = 0.12	Fooling Rate = 0.26

Fooling Rate = 0.08	Fooling Rate = 0.04	Fooling Rate = 0.08	Fooling Rate = 0.27	Fooling Rate = 0.33