Table 2.

Reduction in curvelet coefficients for sample mammograms from MIAS and DDSM dataset.

Sr. No.	MIAS				DDSM
	ROI Size	Total number of curvelet coefficients from subbands	Total number of selected curvelet coefficients from subbands	% reduction in curvelet coefficients	ROI Size	Total number of curvelet coefficients from subbands	Total number of selected curvelet coefficients from subbands	% reduction in curvelet coefficients
1	124 × 138	1,03,911	77,133	25.77	192 × 187	2,16,729	1,68,333	22.33
2	179 × 138	1,50,123	1,26,142	15.97	294 × 291	5,18,267	3,66,680	29.25
3	51 × 116	36,815	33,421	9.22	145 × 207	1,81,663	1,48,765	18.11
4	83 × 83	42,449	36,653	13.65	169 × 168	1,71,873	1,54,752	9.96
5	84 × 76	39,115	35,815	8.44	182 × 248	2,72,517	2,19,822	19.34
6	74 × 83	37,767	34,448	8.79	213 × 349	4,49,783	3,01,359	33.00
7	53 × 64	20,969	18,621	11.20	578 × 412	14,33,195	6,62,072	53.80
8	70 × 44	18,899	16,610	12.11	215 × 219	2,86,429	2,42,935	15.18
9	80 × 66	32,409	29,454	9.12	420 × 428	10,82,461	5,01,209	53.70
10	69 × 86	36,783	33,552	8.78	203 × 307	3,75,871	2,66,829	29.01
11	59 × 116	42,019	38,442	8.51	226 × 262	3,57,209	2,76,763	22.52
12	81 × 101	50,637	46,122	8.92	159 × 194	1,87,563	1,48,741	20.70
13	41 × 84	21,427	18,907	11.76	718 × 686	29,61,127	7,62,561	74.25
14	69 × 141	60,641	52,427	13.54	409 × 550	13,52,439	9,04,829	33.10
15	60 × 62	22,925	20,475	10.69	524 × 375	11,84,671	7,66,522	35.30
16	96 × 101	59,647	54,235	9.07	311 × 275	5,17,433	3,97,737	23.13
17	136 × 139	1,13,727	66,352	41.56	319 × 320	6,14,129	4,12,606	32.81
18	55 × 94	31,359	28,305	9.74	313 × 447	8,42,855	5,10,482	39.43
19	157 × 140	1,32,373	1,07,000	19.17	291 × 517	9,07,903	6,37,412	29.79
20	156 × 130	1,23,007	90,834	26.15	370 × 837	18,64,889	8,98,236	51.83
Average		58,850	48,247	14	Average	7,88,950	4,37,432	32