Abstract
We propose a phase-scrambled image and an image matching method between phase-scrambled images. The proposed scrambling is motivated by visual protection of images and prevention of illegal image matching. Since the synchronized scrambling keeps the relative relation, image matching between phase-scrambled images by phase-only correlation is directly executed without descrambling. There is no effect of scrambling on image matching. The estimation values between phase-scrambled images can be obtained with the same accuracy as those of non-scrambled images.