9-1079Existence inspection by point measurement9-10 Existence inspection by point measurement· Inspection sequenceImage capture Binary imageconversionBlack/white evaluationof pointsAverage lightlevelLight level evaluationof pointsPurposeExampleApplicationsChecking the presence or absence of packed parts, inspecting the workingcondition of LEDs or fluorescent character display tubes, and sorting householdelectric appliances[Inspection at 6 points]The presence or absence of target objects is examined.· A simple black or white evaluation is made in the specified pixel area of binaryimages.· The light level in the specified pixel area is averaged, and a decision is madewhether or not it is within the specified lightness range in gray scale images.Number of points (max.): 128 points at average light levels256 points in binary imagesPoint size: 2 m x 2n pixels(m, n = 1 to 16)
