Longitudinal skin stretcher jaw shape adjusting control method based on machine vision

The invention provides a longitudinal skin stretcher jaw shape adjusting control method based on machine vision. The longitudinal skin stretcher jaw shape adjusting control method comprises the steps that S1, an image collecting system is installed; s2, calibrating a camera through a Zhang Zhengyou calibration method, and establishing a relationship between a target pixel point and a corresponding target point position in a space; s3, turning on a light source, obtaining an image shot by the camera, and preprocessing the image; s4, carrying out edge extraction on the preprocessed grayscale image; and S5, fitting the edge grayscale image curve through a least square method, and adjusting the stroke of a jaw shape-adjusting hydraulic cylinder of the stretcher to realize jaw shape-adjusting control of the longitudinal skin stretcher. According to the invention, the states of the skin blank and the jaw can be accurately detected, so that the jaw shape is matched with the end face shape, and the skin blank can be