Paint surface defect detection method and device based on color active reference object and medium

The invention provides a paint surface defect detection method and device based on a color active reference object and a medium, and relates to the technical field of paint surface detection. The method comprises the following steps: acquiring different to-be-detected vehicle body images, generating a to-be-detected image set, and performing preprocessing and multi-dimensional binarization processing on each to-be-detected vehicle body image to obtain a fourth-layer attribute value of each pixel point in the to-be-detected vehicle body image except RGB three-layer gray data; and according to the fourth layer attribute value of each pixel point, determining whether there is a paint surface defect in the to-be-detected vehicle body image. And determining the paint defect position of the vehicle body according to the shooting time of the to-be-detected vehicle body image and the layout position of the image acquisition equipment for shooting the to-be-detected vehicle body image. In the application, the computin