Quality visual inspection method in automatic production process of copper core wire

The invention relates to the technical field of image data processing, in particular to a quality visual inspection method in an automatic production process of a copper core wire, which comprises the following steps of: acquiring a copper core wire surface image, an abnormal area in the copper core wire surface image and a bit layering image of the surface image; obtaining a spatial domain damage degree parameter of the abnormal region according to the difference of pixel point gray values in the abnormal region in the adjacent bit layered images, obtaining a spectrogram of the bit layered images and low-frequency information elements in the spectrogram, obtaining a frequency domain characteristic parameter of the abnormal region according to the number of the low-frequency information elements, and obtaining a frequency domain damage degree parameter of the abnormal region; and determining a damage parameter of the abnormal region by combining the spatial domain damage degree parameter and the frequency dom