Duplicate a key using image processing

This paper proposes to use image processing to duplicate a key grooves and a key cuts [1]. The first step of this research is taking a cross-sectional image of the key grooves and top-sectional image the key cuts. Exploiting binary image enhancement to acquire a contour of the key grooves and key cuts. Then transform the image data to contour data presented by coordinate(x,y). This information is transformed into CNC G Coding . The duplication of the key will be performed by mini CNC machine. The tolerance examination is conducted by comparing a dimension of the master key and the duplicated key.