Facial acne focus detection method and device and storage medium

The embodiment of the invention discloses a facial acne focus detection method and device and a storage medium. The method comprises the steps of preprocessing an image to eliminate highlight in the image, then obtaining a multi-layer feature map through feature extraction and pooling, carrying out pixel addition on the multi-layer feature map to complete feature fusion to obtain a multi-layer fusion feature layer, and finally carrying out multi-scale target detection and screening on the multi-layer fusion feature layer, according to the method, target features of different sizes are obtained, a target feature map can be obtained according to the target features, the target feature map is judged, and a final detection result is obtained. In the embodiment of the invention, not only can interference information brought by highlight in the image be removed, but also the redundancy in the extracted features can be reduced, and the size range of the detectable target area can be expanded, so that the feature ext