Method of authenticating security marker

摘要

A method for authenticating security markers includes capturing an image of a region of interest on a product with a camera; storing image data in a two-dimensional array on a microprocessor; counting a number of pixels at or above a predetermined brightness level in the image data with the microprocessor to determine a first score; establishing an area within the image; counting a number of pixels within the area to determine a second score; calculating a ratio of the second score to the first score; and if the ratio is above a predetermined threshold the security marker is authenticated.

主权项

1. A method for authenticating security markers comprising:
capturing an image of a region of interest on a product with a camera; using a microprocessor to store image data of the image in a two-dimensional array in a memory; using the microprocessor to count a number of pixels at or above a predetermined brightness level in the image data to determine a first score; using the microprocessor to establish a circle that excludes a portion of the image, the circle having a center at the spatial center of the image; using the microprocessor to count a number of pixels above the predetermined brightness level within the circle to determine a second score; using the microprocessor to calculate a ratio of the second score to the first score; and if the ratio is above a predetermined threshold, using the microprocessor to authenticate the security marker.