Measurement of the Diameter of Non-Woven Fiber Based on Image Processing

A series of images of single nonwoven fiber were captured with a CCD camera by using transmitted light,and then the medium filter was adopted to remove noise.The profile lines of the fiber were extracted by the Canny edge detection algorithm,then the obliquity of the fiber was gotten by curve fit.The diameter of the fiber was obtained according to the relationship of the obliquity and the horizontal or vertical length of the fiber.The diameter distribution of nonwoven fibers was analyzed preliminarily.