Edge detection is used to find locations in the digital image where the image brightness changes abruptly along a line of pixels. These abrupt changes usually define the edge of an object in an image. This chapter presents a method using Vision Assistant for edge detection. In this example, the simple edge tool is used for edge detection. To obtain the best results from edge detection, determining an appropriate value for the threshold is important. LabVIEW code can be created upon completion of the Vision Assistant setup. The created code can then be modified to calculate the location as well as the size of the object. The chapter further uses Vision Assistant Express for real‐time edge detection. The real‐time aspect will involve continuous image acquisition using the image grab method.
Edge Detection
08.12.2014
14 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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