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The term "biometrics" is derived from the Greek words bio means “life” and metric means “to measure”. In this paper, a detailed experimental study of physiology biometrics (face, iris) detection, face detection algorithms based on “Skin Color” has been made. | International Journal of Computer Networks and Communications Security C VOL. 1, NO. 5, OCTOBER 2013, 180–188 Available online at: www.ijcncs.org ISSN 2308-9830 N C S Biometric(s) Detection and Steganography Sara Kh. Ayoub1, Dr. Ahmed S. Nori2 12 Computer Science Dept. College of Computer Science and Mathematics Iraq, Mosul, Mosul University E-mail: 1saraalsultan93@yahoo.com, 2asn2203@yahoo.com ABSTRACT The term "biometrics" is derived from the Greek words bio means “life” and metric means “to measure”. In this paper, a detailed experimental study of physiology biometrics (face, iris) detection, face detection algorithms based on “Skin Color” has been made. Three color spaces RGB, YCbCr and HSI are of main concern. We have compared the algorithms based on these color spaces and have combined them to get a new skin color based face detection algorithm which gives higher accuracy. Use morphology for iris detection, after detection extract feature use PCA algorithm and steganography using Logical exclusiveXOR. Keywords: Biometric, Detection, Feature Extraction, Steganography. 1 INTRODUCTION A biometric is defined as a unique, measurable, biological characteristic or trait for automatically recognizing or verifying the identity of a human being. Statistically analyzing these biological characteristics has become known as the science of biometrics [1]. Steganography is the art and science of hiding information by embedding messages within other, seemingly harmless messages. Steganography means “covered writing” in Greek. The goal of steganography is to hide the presence of a message and to create a covert channel [2]. Steganographic technologies are a very important part of the future of Internet security and privacy on open systems such as the Internet [3]. Steganographic research is primarily driven by the lack of strength in the cryptographic systems on their own and the desire to have complete secrecy in an open-systems environment. The word “biometrics” .