Carbon fiber part surface defect detection device and method

The invention discloses a carbon fiber part surface defect detection device and method. The method comprises the following steps of acquiring an original image of a carbon fiber part; performing gray processing on the original image; performing opening operation and expansion operation; threshold processing being carried out; performing connected domain screening processing; and carrying out edge detection to show defect characteristics on the surface of the carbon fiber part. According to the method for detecting surface defects of a carbon fiber part, firstly, gray processing is carried out on an image of the carbon fiber part, then opening operation and expansion operation are carried out on the image subjected to gray processing to remove image noisy points and repair image defects, and then residual high-reflection influence and complex ground color interference are removed through threshold processing; then removing interference connected domains through connected domain screening processing, and finall