Pin accurate positioning detection method, device and equipment and readable storage medium

The invention discloses a PIN accurate positioning detection method, device and equipment and a readable storage medium, and is applied to the field of image detection.The method comprises the steps that an obtained original image is preprocessed, and a threshold segmentation processing image is obtained; performing region connection processing on the threshold segmentation processing image, and selecting a region meeting a preset feature in a region connection processing result as a target region; obtaining the center coordinate of the target area, and determining the area where the PIN needle is located through the affine position transformation relation; carrying out threshold segmentation processing on the area where the PIN is located to obtain an effective PIN area; and detecting the PINs according to the number and the center coordinates of the effective PIN areas. According to the method, the area where the PINs are located is determined through the preset affine position transformation relation, and