Arbitrary scale image enlargement with the prediction of high frequency components

In this paper, we propose an arbitrary scale enlargement method of digital images based on the Laplacian pyramid (LP) representation. Through the calculation of the arbitrary scale LP stages we obtain the ability of arbitrary scale enlargement, which solves the problem that the conventional LP enlargement methods are only capable of expanding an image up by a factor of two in size. Experimental results show that the proposed method can work effectively on arbitrary scale image enlargement.