A novel simultaneous dynamic range compression and local contrast enhancement algorithm for digital video cameras

Tsai, Chi-Yi; Chou, Chien-Hsing

doi:10.1186/1687-5281-2011-6

EURASIP Journal on Image and Video Processing

Table 2 Quantitative measure of enhanced images.

From: A novel simultaneous dynamic range compression and local contrast enhancement algorithm for digital video cameras

Image no	Method		State-of-the-art methods						SDRCLCE method with adaptive intensity transfer function for m_min = 50 and m_max = 250
	Original image		MSR[14]		AINDANE[12]		WDRC [18]		Sigma 4		Sigma 8		Sigma 16
	$\bar{σ}$	$\bar{I}$	$\bar{σ}$	$\bar{I}$	$\bar{σ}$	$\bar{I}$	$\bar{σ}$	$\bar{I}$	$\bar{σ}$	$\bar{I}$	$\bar{σ}$	$\bar{I}$	$\bar{σ}$	$\bar{I}$
1	17.9	159.2	27.0	153.4	25.9	186.0	25.9	180.6	23.2	182.2	27.0	182.0	30.5	181.9
2	29.5	121.2	*52.3*	*141.6*	39.0	159.2	*47.9*	*160.1*	*53.5*	*168.8*	*60.4*	*168.8*	*64.4*	*168.5*
3	21.4	142.9	*40.5*	*147.4*	34.2	231.0	33.6	175.2	26.0	178.4	31.6	178.3	38.3	178.4
4	22.2	118.6	32.6	146.6	27.9	167.0	34.6	155.8	24.9	169.2	29.8	168.9	36.0	168.1
5	21.5	132.3	35.1	148.5	28.2	197.6	32.8	168.9	25.5	175.1	31.2	175.0	36.9	174.9
6	39.8	95.4	*73.5*	*135.5*	*57.3*	*147.0*	*65.1*	*136.9*	*61.5*	*151.6*	*71.2*	*149.8*	*79.2*	*147.2*
7	24.7	142.1	37.7	133.7	33.5	165.7	39.9	172.7	*41.5*	*178.4*	*47.3*	*177.6*	*51.9*	*176.8*
8	28.1	119.8	*49.1*	*141.2*	37.8	158.9	*46.1*	*157.9*	35.1	167.6	*45.5*	*167.1*	*54.3*	*166.3*
9	27.2	58.5	*71.2*	*104.6*	*55.4*	*119.4*	59.5	96.4	*60.0*	*109.9*	*69.2*	*110.5*	*75.7*	*110.1*
10	21.1	138.4	28.3	138.3	28.8	156.7	32.8	171.3	27.8	175.4	33.3	175.4	38.5	175.6
11	22.3	127.5	30.8	136.9	30.4	148.4	34.1	165.6	28.3	172.0	34.5	171.7	*40.5*	*171.4*
12	27.0	104.6	*46.6*	*133.7*	38.9	154.4	*44.6*	*148.1*	*41.5*	*157.8*	*47.6*	*156.7*	*54.1*	*155.3*
13	23.3	171.2	26.4	135.0	29.2	180.7	31.6	184.8	24.7	185.7	29.4	185.2	35.2	184.7
14	37.0	115.4	*59.5*	*130.8*	*43.8*	*157.2*	*54.9*	*148.3*	*59.2*	*162.2*	*65.7*	*160.0*	*70.9*	*157.9*
15	31.0	108.7	*58.6*	*141.2*	*43.3*	*157.9*	*52.7*	*143.2*	*47.2*	*157.2*	*55.6*	*156.4*	*63.0*	*155.6*
16	31.9	130.4	*49.4*	*129.9*	*44.0*	*177.4*	*47.2*	*153.3*	38.3	169.7	*44.9*	*168.8*	*52.3*	*166.9*
17	18.3	108.9	34.5	134.7	24.2	157.2	35.3	156.3	35.6	163.2	39.8	162.9	*44.2*	*162.5*
18	24.6	84.0	*53.4*	*121.6*	38.3	141.2	*47.7*	*129.6*	36.5	141.9	*45.0*	*141.5*	*54.2*	*140.8*
19	28.7	83.6	*56.6*	*141.5*	*43.0*	*147.3*	*51.9*	*133.0*	*50.3*	*146.1*	*59.2*	*145.4*	*66.0*	*144.3*
20	24.0	126.4	36.1	135.2	31.0	161.4	37.2	160.8	34.5	170.6	39.9	169.6	*44.5*	*168.8*
21	24.4	105.3	*54.9*	*110.7*	*49.9*	*150.8*	*45.7*	*127.9*	*45.2*	*125.6*	*50.1*	*125.6*	*54.2*	*125.4*
22	25.7	129.8	*40.3*	*135.7*	33.1	166.7	38.7	162.6	38.1	170.9	*43.6*	*169.8*	*48.2*	*168.4*
23	22.6	125.9	35.9	143.5	29.4	160.2	35.7	162.3	33.1	172.4	39.0	171.8	*43.5*	*170.9*
24	24.3	133.3	31.0	152.1	30.3	176.8	35.1	159.7	22.8	174.4	27.1	174.0	31.9	173.1
25	30.5	115.9	*49.2*	*132.3*	36.8	155.4	*48.3*	*149.8*	*43.0*	*166.7*	*50.7*	*165.4*	*57.6*	*163.5*
26	21.8	116.0	36.1	133.3	29.4	172.5	37.7	156.0	27.8	165.7	34.5	164.9	*41.2*	*164.0*
27	19.7	98.9	*42.5*	*136.9*	27.7	162.3	36.2	150.1	27.6	161.8	35.4	161.4	*42.7*	*160.6*
28	10.0	104.8	27.3	132.0	17.1	158.7	23.3	156.9	24.5	158.3	27.8	158.4	30.6	158.4
29	30.0	76.3	*64.6*	*110.2*	*56.1*	*134.9*	*55.8*	*110.6*	*48.7*	*116.1*	*56.8*	*115.3*	*63.9*	*114.7*
30	14.2	27.6	51.3	89.3	*44.0*	*109.0*	37.2	63.9	26.0	61.0	29.9	61.0	34.8	61.1
Avg	24.8	114.1	*44.4*	*133.6*	36.3	160.6	*41.6*	*150.0*	37.1	158.5	*43.4*	*158.0*	*49.3*	*157.2*
Avg gap			19.6	19.5	11.5	46.5	16.8	35.9	12.3	44.4	18.6	43.9	24.5	43.1
Number in VO region			16		9		13		11		15		21

The bold-italic font denotes the quantitative measures falling in the VO region defined in Figure 6.

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