Contrast Enhancement Method Based on Gray and Its Distance Double-Weighting Histogram Equalization for 3D CT Images of PCBs

Table 3

Results of the enhancement indicators of different algorithms.

			EME	EME_Michelson	EME_entropy	AME
BBHE	4099.3	78.3485	44.5323	−177.4295	0.5607	−1.1293
HE	5186.8	159.0364	37.5031	−215.8138	0.4681	−1.2302
DSIHE	4992.2	107.1096	46.3229	−175.5208	0.5863	−1.1136
MMBEBHE	1178.6	35.4638	36.9988	−211.7172	0.4566	−1.2245
RMSHE	1581.6	44.8693	29.8655	−253.1355	0.3690	−1.2820
WMSHE	2002.2	61.5583	37.1405	−214.1648	0.4613	−1.2254
RSWHE	227.1	3.8843	8.0991	−341.4916	0.0864	−1.6056
WTHE	2587.0	49.9144	30.1331	−235.8318	2.2706	−1.3675
GDDWHE	5190.0	108.5125	53.8177	−176.2185	2.3154	−1.1113