Aiming at the phenomenon that paper disease can affect the appearance and usage performance of paper,this paper investigated the disease detection method based on machine vision,analyzed the image features of the wrinkle,black and bright spots.The detection of black and bright spots was realized through the image de-noising,analysis of gray level,threshold segmentation,two binary images.And the detection of the wrinkle was realized through the edge detection,two binary images,morphological processing and Ho...