Image sharpening recognition model training and sharpening recognition processing method and device

The invention relates to an image sharpening recognition model training method and device and an image sharpening recognition processing method and device. The image sharpening recognition model training method comprises the steps of obtaining preset sharpening index data corresponding to a first sample image set and a second sample image set; performing multi-level sharpening processing on each sample image in the first sample image set to obtain a sharpened image sequence; determining at least one sharpened sample image pair of each sample image from the sharpened image sequence; inputting the at least one sharpening sample image pair into a to-be-trained sharpening recognition model to obtain first sharpening index data; determining sorting penalty loss according to the first sharpening index data; based on the sorting penalty loss, training a to-be-trained sharpening recognition model to obtain an initial sharpening recognition model; and training the initial sharpening identification model based on the s