Quadrant Dynamic with Automatic Plateau Limit Histogram Equalization for Image Enhancement

Table 1

Absolute mean brightness error (AMBE).

Images	HE	BBHE	DSIHE	MMBEBHE	RMSHE ()	BPDHE	BHEPL	QDAPLHE
Einstein	17.17	19.27	12.07	14.27	10.17	3.65	3.07	1.97
Girl	5.29	23.51	4.46	3.04	0.45	2.4	0.13	0.07
House	58.81	25.09	31.92	25.06	8.07	5.43	3.57	2.54
Couple	96.42	33.17	43.81	18.45	10.28	3.56	2.78	1.72
Copter	62.72	17.21	26.91	32.14	3.08	2.54	1.24	0.22
F16	49.72	1.09	13.5	15.31	1.24	1.54	2.53	1.89
Jet	71.76	4.91	26.84	2.07	0.64	0.29	0.37	0.34
CT chest	53.19	24.05	19.23	16.71	4.19	3.29	0.98	0.67
CT brain	62.08	34.21	29.71	19.31	5.84	3.56	1.97	1.58
CT abdomen	59.34	24.73	31.35	13.08	3.71	2.19	1.25	0.97
Average	53.65	20.72	23.98	15.94	4.78	2.85	1.79	1.19