In this paper, we have presented an extensive survey of the up-to-date techniques for skin detection using color informationinthevisualspectrumfor2Dimages.Agoodskin classifiermustbeabletodiscriminatebetweenskinandnonskin pixels for a wide range of people with different skin types such as white, yellow, brown and dark and be able to perform well under different illumination conditions such as indoor, outdoor and with white and non-white illumination sources. We reviewed the following critical issues regarding skin detection: