A Novel Image Retrieval Based on a Combination of Local and Global Histograms of Visual Words

Table 2

Comparison of MAP for top-20 image retrievals on Corel-A image benchmark.

Class & method	Proposed research	Youssef [17]	Irtaza et al. [4]	Poursistani  et al. [18]	Tian et al. [19]	Wang et al. [15]
Africa	73.03	63.5	65	70.24	74.6	64
Beach	74.58	64.2	60	44.44	37.8	54
Buildings	80.24	69.8	62	70.8	53.9	53
Buses	95.84	91.5	85	76.3	96.7	94
Dinosaurs	97.95	99.2	93	100	99	98
Elephants	87.64	78.1	65	63.8	66	78
Flowers	85.13	94.8	94	92.4	92	71
Horses	86.29	95.2	77	94.7	87	93
Mountains	82.43	73.8	73	56.2	58.5	42
Food	78.96	80.6	81	74.5	62.2	50