Script determination in document images
Larry Spitz · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1995
We have developed techniques for distinguishing which language is represented in an image of text. This work is restricted to an important subset of the world's languages, using techniques that should be applicable across even more comprehensive samples. The method first classifies the script into two broad classes: European and Asian. This classification is based on the spatial relationships of fiducial points related to the upward concavities in character structures. Script identification within the Asian class, (Japanese, Chinese, Korean) is performed by analysis of the optical density distribution of the text images.