An image sharpening algorithm for high magnification image zooming

Traditional image sharpening methods usually introduce over shootings along the edges, and do not perform well for sharpening an image resulting from high magnification zooming. In this paper, we present an image sharpening algorithm which is overshooting free and particularly suitable for high magnification zooming situation. Our algorithm modifies the pixel value based on the desired changes for its gradient profile, and the sharpening parameters can be learned for the particular zooming rate. Experimental results show that the proposed algorithm outperforms the conventional image sharpening methods.