Abstract: Sign Language Recognition has evolved as an important area of research in the past few years. Sign language can be defined as the language of the deaf and dumb people by which they are able to express their thoughts. Such people are not able to use acoustic means for the purpose of communicating, instead they convey message by making use of the Sign Language. Thus Sign language is a means developed for the deaf and dumb society by which they can visually transmit different sign patterns to convey their message by combining simultaneously hand shapes, movement of hands and orientation of hands which are also sometimes associated with the facial expressions.