Method and device for extracting contour features of video key frame image

The invention provides a video key frame image contour feature extraction method and device, equipment, a medium and a product. The video key frame image contour feature extraction method comprises the following steps: carrying out binarization processing on an original video key frame image; processing the image subjected to the binarization processing by using a morphological erosion operation; and performing XOR operation on the image processed by the morphological erosion operation and the image processed by the binarization processing to obtain an image contour feature point coordinate set, and framing four polar coordinates of the image contour feature point coordinate set on the original video key frame image to generate a framed labeled image. According to the scheme, the image key contour information is automatically obtained through the digital image processing morphological transformation operation, so that the manpower consumption and the time cost are reduced, and the marking efficiency of the im