Table 1. Evaluation on BSDS500. Higher is better for all measures except VI, for which lower is better.

Algorithm	Covering			RI		VI		F-measure
	ODS	OIS	Best	ODS	OIS	ODS	OIS	ODS	OIS	AP
human	0.72	0.72	–	0.88	0.88	1.17	1.17	0.80	0.80	–
agglo	0.612	0.669	0.767	0.836	0.862	1.56	1.36	0.728	0.760	0.777
flat	0.608	0.658	0.753	0.830	0.859	1.63	1.42	0.726	0.760	0.776
oriented mean [4]	0.584	0.643	0.741	0.824	0.854	1.71	1.49	0.725	0.759	0.758
mean	0.540	0.597	0.694	0.791	0.834	1.80	1.63	0.643	0.666	0.689

ODS uses the optimal scale for the entire dataset while OIS uses the optimal scale for each image.