Image display having function of performing interpolation process by which outline is not blurred even when original image is enlarged

Abstract

Disclosed is an image display having the function of performing an interpolating process which does not make the outline blurred even when an original image is enlarged. In the case of interpolating n (n is a natural number) pixels between two neighboring pixels 1 and 2 in an input image signal, an interpolation value Zm as data of the mth (m is a natural number equal to or larger than n) interpolation pixel from the pixel 1 is selected within a range from Xm to Ym which are obtained by the following equations; Xm=K1+m(K1−K0)/(n+1) Ym=K2+(n+1−m)(K2−K3)/(n+1) where, data of a pixel 0 adjacent to the pixel 1 on the side opposite to the pixel 2 is K0, data of the pixel 1 is K1, data of the pixel 2 is K2, and data of a pixel 3 adjacent to the pixel 2 on the side opposite to the pixel 1 is K3. The interpolation value is outputted to a display screen.

Dependencies are inferred from the claim text.