Blowhole Detection Based on Bidirectional Enhancement and Omnidirectional Analysis for X-Ray Inspection of Castings

Table 1

The performance of the methods for extraction of potential defect regions in the GDXray database.

Method	TP	FP	FN	Pr	Re
Method in [26]	71	43108	14	0.0016	0.8353
Proposed	80	902	5	0.0815	0.9412