A dynamic threshold approach for skin tone detection in colour images. (20th December 2011)

• Record Type: Journal Article
• Authors: Yogarajah, Pratheepan; Condell, Joan; Curran, Kevin; McKevitt, Paul; Cheddad, Abbas
• Is Part Of: International journal of biometrics. Volume 4:Number 1(2012)
• Page Start: 38
• Page End: 55
• Publication Date: 2011-12-20
• Subjects: skin tone detection -- dynamic threshold; Biometric identification -- Periodicals; Biometry -- Periodicals; 570.15195
• Languages: English
• ISSNs: 1755-8301

Abstract

This paper presents a novel dynamic threshold approach to discriminate skin pixels and non-skin pixels in colour images. Fixed decision boundaries (or fixed threshold) classification approaches are successfully applied to detect human skin tone in colour images. These fixed thresholds mostly failed in two situations as they only search for a certain skin colour range: Therefore in this paper, instead of predefined fixed thresholds, novel online learned dynamic thresholds are used to overcome the above drawbacks. The experimental results show that our method is robust in overcoming these drawbacks.