Bending degree measuring device and measuring method

The invention belongs to the technical field of cigarette package testing, and discloses a bending degree measuring device and a bending degree measuring method. The bending degree measuring device comprises a bearing structure, an image acquisition structure and a detection system, the bearing structure is used for placing label paper, supplementing light to the label paper and flattening the label paper, the image acquisition structure is arranged at the top of the bearing structure, and the detection system is used for detecting the bending degree of the label paper. The image acquisition module is used for acquiring a front-side original image, a back-side original image and a flattening image of label paper; and the detection system is connected with the bearing structure and the image acquisition structure, and is used for receiving the front original image, the back original image and the flattening image of the label paper acquired by the image acquisition structure, and obtaining the bending degree o