124 страниц. 2013 год. LAP Lambert Academic Publishing This text is an informative depicting illustrating a genuine research under natural/room conditions. Human Iris recognition is the subject of research. Iris images are captured from high resolution cameras and have been converted to mathematical values and model after being converted to digital image.Two such research methods have been elaborately explained. The text also introduces basic concepts and techniques of digital image processing and gives ideas for new research method. Biometric technology is also breifly introduced.