Figure: Detection of a bubble-like defect by texture analysis in grid fields: significant deviations for gray value variance (ColVar = 10.81) and energy (energy = 335.16) for field 7 with the defect.
Detection of surface defects in the interior of electric stoves and on baking sheets
Setup:
- 1 megapixel grayscale USB camera
- Lens with 8 mm fixed focal length,
- Lighting (compact fluorescent tube Dulux L 55W with semi-circular reflector)
- medeaLAB Machine Vision