1. An interface apparatus using a hand gesture recognition, comprising: an image obtaining means for acquiring a hand gesture image; an input receiving means for receiving a command registration request signal and a command selection signal; a hand gesture recognizing means for storing the hand gesture image, which is obtained in the image obtaining means according to the command registration request signal received in the input receiving means, in connection with a specific command, and transforming the hand gesture image into the corresponding command by recognizing the hand gesture image from the image obtained in the image obtaining means; and a command performing means for performing an operation corresponding to a command transformed in the hand gesture recognizing means.