Measuring method for shredding width

The invention discloses a measuring method for shredding width. According to the method, digital processing is carried out on a pre-processing image by using a matlab image processing method, a binaryzation image is extracted and then the shredding width is calculated; specifically, the measuring method comprises the following steps of: a, firstly, sampling three samples and pasting the three samples on a background template; b, acquiring the pre-processing image for an analysis by using a digital camera; c, finally, carrying out digital processing to the pre-processing image by using the matlab image processing method, extracting the binaryzation image and calculating an average width, wherein a specific calculation formula for the shredding width is shown in the specification. The measuring method for the shredding width disclosed by the invention solves the problem that accurate measurement of the shredding width is difficult to realize in present cigarette enterprises, a simple and feasible measuring method is provided for an accurate, objective, simple and efficient evaluation of the shredding width, reliable technical parameters and evaluation data are provided, and a significance is provided for controlling stability of a production process, uniformity of the shredding width and quality indexes of cigarettes.