Fecha de publicación: 22/01/2021 Fuente: Wipo Tobacco Agriculture The invention discloses a tobacco leaf image online background processing system and an online background processing method. The system comprises an image acquisition module, an image preprocessing module, an image discrimination module and an image segmentation module. The online background processing method comprises the following steps: cutting an acquired image into a background frame; judgingwhether the to-be-detected image is a tobacco leaf image or not through a perceptual hash algorithm and similarity calculation; performing edge-preserving denoising processing on an image by adoptingmean filtering, cutting the image into a plurality of regions, mapping the cut regions into a background contour curve, and finally replacing the extracted contour curve with a white, black or transparent background to obtain a background-removed tobacco leaf image. According to the online background processing system, efficient and accurate deduction of the background can be realized without human participation, the image after background matting can be automatically used as the image for next analysis, manual image storage is not needed, and a good foundation is laid for online maturity recognition.