A no reference geometrical compensation method using simple correlation-based data hiding
Masaaki Fujiyoshi, Shouhei Kamimura, Hitoshi Kiya · 2009
This paper proposes an image registration method in which a geometrical deformed image is geometrically compensated without using its corresponding reference image. The proposed method hides a simple two-dimensional matrix into an original image in the spatial domain to generate a stego image. Once a stego image is geometrically deformed, this method estimates the geometric parameters by correlation between the geometrical deformed stego image and two-dimensional matrix. Since the proposed method hides the identical matrix to the image regardless of image, this method does not require any reference image, whereas ordinary image registration method require the reference image that corresponds to the image to be compensated. Experimental results show the effectiveness of the proposed method.