REGISTAR 1.0

RegiStar is an image alignment, or registration, program that was designed to work specifically with astronomical images. RegiStar finds the stars in an image, and uses their positions to align this image to another image or group of images. RegiStar uses a sophisticated matching algorithm that allows images at different scales and orientations to be registered. RegiStar automatically corrects for geometric distortions, so it works on images taken with different optical systems. Also, it works on image pairs that have only a small overlap. RegiStar registers most images that have at least a 1% overlap and at least 10 stars in common.