Quadrant Dynamic with Automatic Plateau Limit Histogram Equalization for Image Enhancement

Table 2

Standard deviation (STD).

Images	HE	BBHE	DSIHE	MMBEBHE	RMSHE ()	BPDHE	BHEPL	QDAPLHE
Einstein	73.59	73.81	73.94	62.31	57.95	52.43	41.72	35.51
Girl	75.41	70.12	75.49	68.73	37.85	35.57	27.21	28.13
House	73.65	75.13	75.51	55.43	56.79	50.72	49.27	38.54
Couple	71.86	74.15	79.61	48.41	53.29	41.49	35.38	32.17
Copter	73.17	72.73	76.72	52.59	52.07	48.23	46.51	45.39
F16	74.56	67.61	77.41	68.71	61.05	56.71	43.27	60.25
Jet	74.32	64.72	78.31	54.31	56.74	45.19	31.27	29.21
CT chest	85.12	74.19	81.29	56.23	49.16	42.75	35.19	34.31
CT brain	80.24	70.27	76.34	62.16	57.34	50.74	44.27	38.10
CT abdomen	82.34	76.35	79.56	69.13	50.37	48.29	45.84	29.74
Average	76.43	71.91	77.42	59.80	53.26	47.21	39.99	37.13