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

Table 2

Results of the enhancement indicators with different values of ().

			EME	EME_Michelson	EME_entropy	AME
	5300.1	113.1104	50.2641	−180.2698	1.8186	−1.1266
	5261.7	111.3227	50.8808	−179.5898	1.9254	−1.1247
	5238.4	110.4491	51.7547	−178.4670	2.0297	−1.1203
	5190.0	108.5125	53.8177	−176.2185	2.3154	−1.1113
	5165.7	107.6472	55.1504	−174.9075	2.4976	−1.1057
	5126.3	106.3441	55.2525	−174.3375	2.4789	−1.1041