Abstract: Provided is a method of detecting a surface defect. The method includes acquiring a target image, detecting at least one defect area from the target image, generating a first defect matrix having a size corresponding to the target image and an element that is a first defect score calculated based on the number of defect areas, calculating a plurality of second defect scores by summing first defect scores in a range corresponding to a predetermined reference window in the first defect matrix, and extracting an image corresponding to the reference window from the target image based on the second defect score and generating a defect image.

Abstract: Provided is a method of detecting a surface defect. The method includes acquiring a target image, detecting at least one defect area from the target image, generating a first defect matrix having a size corresponding to the target image and an element that is a first defect score calculated based on the number of defect areas, calculating a plurality of second defect scores by summing first defect scores in a range corresponding to a predetermined reference window in the first defect matrix, and extracting an image corresponding to the reference window from the target image based on the second defect score and generating a defect image.

Abstract: Various embodiments of the present invention relate to an electronic device comprising: an MST module; a display; a wireless communication module; and a processor, wherein the processor is configured to: identify a location information of the electronic device; identify a request for payment; determine, in response to the request, a payment transmission scheme corresponding to the location information; and transmit, to an external electronic device, payment information related to the payment by using the MST module while varying a data set or transmission period of the payment information according to the payment transmission scheme. Other embodiments that can be recognized through the specification are also possible.