Shadow Region Detection Using Color Properties

컬러 특성을 이용한 그림자 영역 검출

  • 황동국 (충북대학교 컴퓨터공학과) ;
  • 최동진 (충북대학교 컴퓨터공학과) ;
  • 이우람 (충북대학교 컴퓨터공학과) ;
  • 박희정 (안동과학대학 컴퓨터정보과) ;
  • 전병민 (충북대학교 컴퓨터공학과) ;
  • 이상주 (충북대학교 컴퓨터공학과)
  • Published : 2005.08.01

Abstract

In this paper, we present a shadow detection algorithm using the shadow features which appear in color images. Shadow regions have lower luminance and saturation than those of nearby regions, and is generally shown as dark colors. The regions are detected by means of analysing and applying their properties to images represented as the HSI color model. The proposed algorithm is consisted of two steps: at the first step, the candidate regions of shadow are found with using shadow features, and then, real shadow regions are detected only in candidate regions by using their information to reduce real objects and dark marks. The experimental results show that the algorithm is effective.

Keywords

Shadow Detection;Hue;Saturation;Intensity