Image processing is required in number of fields like clinical diagnosis, remote sensing and computer vision. The need for overlaying of images exists in image processing. Image registration is the basis step in various applications of image processing. Registration involves digital preprocessing of the images. It is an important component of various systems including matching a target with a real-time image of a scene for target recognition, matching stereo images for autonomous navigation, aligning images for clinical diagnosis. This paper aims at providing an automated feature based image registration process for registering aerial image acquired through an unmanned aerial vehicle to a satellite image.