Direct Color Objects Processing in Cartographic Images

Abstract

An approach for direct map processing and interpretation in color cartographic image and charts is proposed which directly works on the original color images without global binarisation or color separation. It consists of four stages: adaptive color separation using point's proximity in HSV color space, local thinning and object tracing. The proposed approach allows getting the correct solution of object extraction even in very difficult situations (when original images contain a lot of noise) without extra image improvements.