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

Figure 8

6th slice images of the enhancement results of different algorithms for the original 3D CT image of the PCB.

(a) Original slice image

(b) HE

(c) BBHE

(d) DSIHE

(e) MMBEBHE

(f) RMSHE

(g) RSWHE

(h) WTHE

(i) WMSHE

(j) GDDWHE ()