FOREGROUND IMAGE EXTRCTION IN THE HSV COLOR SPACE

Document Type : Original Article

Authors

Department of Electrical and Control Engineering National Chiao Tung University Hsinchu, Taiwan, ROC.

Abstract

ABSTRACT
When the foreground color is different from the
background color, the foreground subject can be extracted
easily by the luminance component. When the foreground
color is similar to the background color, we cannot extract
the foreground image completely by the luminance
component. To solve this, we utilize the HSV color space to
build the background model, in line with similar spirit of W4
segmentation algorithm, which can not only extract
foreground image but also be helpful to shadow removal.
Since H and S components are not reliable in some
conditions, we make use of three criteria to obtain reliable
and static hue values. In our experiment, extracting the
foreground image in the HSV space improves the accuracy
of the extracted foreground image.

Keywords