In this paper, we propose the simplified click operation based on gesture recognition and develop intuitive interface using it. Click operation is performed from detection of a fingertip position using an infrared image. Recognition of algorithm is used to change an angle and position of the fingertip. A Recognition results is reflected in a projected image which is calibrated between projector and camera. As the experimental results of drawing interface, our system is comfortable and intuitive in comparison with a conventional touch panel interface.