This paper presents an algorithm to detect skin pixels in an image. Each pixel is classified as a skin or non-skin pixel based on features extracted from its neighborhood. The presented algorithm uses a modified likelihood ratio for classification, and uses a multi-scale approach to classify the pixel in question. The algorithm was developed and evaluated using the ColorFERET dataset. The presented algorithm achieved 95.6 % classification accuracy.
Siddharth Roheda, "A Multi-Scale Approach to Skin Pixel Detection" in Proc. IS&T Int’l. Symp. on Electronic Imaging: Surveillance: Applications and Algorithms, 2017, pp 18 - 23, https://doi.org/10.2352/ISSN.2470-1173.2017.4.SRV-352