Image Retrieval Based on the Combination of Region and Orientation Correlation Descriptors

Table 4

Retrieval results with different methods for Corel-5K.

Methods	Precision (%)					Recall (%)
	10	15	20	25	30	10	15	20	25	30
MTH	54.26	48.85	45.33	42.66	40.37	5.43	7.33	9.07	10.66	12.11
TCM	54.71	49.34	46.04	43.35	40.98	5.47	7.40	9.21	10.84	12.29
CDH	52.52	47.76	44.48	42.16	40.13	5.25	7.16	8.9	10.54	12.04
SED	58.84	52.91	49.29	46.20	43.71	5.88	7.94	9.86	11.55	13.11
BCC	58.40	52.51	48.78	45.91	43.79	5.84	7.88	9.76	11.48	13.14
DCT+ GLCM	54.32	49.43	45.75	42.3	39.33	5.43	7.41	9.15	10.57	11.80
CROCD	60.20	54.60	50.75	47.83	45.23	6.02	8.19	10.15	11.96	13.57

The best retrieval results are shown in bold.