Digital image processing apparatus

Abstract

Digital image signals in each small block of m.times.n picture elements are read out from a first image memory, which stores the digital image signals for one screen, to be stored in block memories BM1Y, BM2Y, BM1C and BM2C, and the electric zoom processing together with the interpolation operation for the digital image signals in each small block are carried out in a zoom block. A picture element in the horizontal direction in a small block partially overlaps a picture element in a small block which is next to the above-mentioned small block in the horizontal direction. As a result, the interpolation processing in the horizontal direction can be also carried out on the boundary of the small blocks. And, the order to read out the digital image signal from the first image memory and the order to write the digital image signal in the block memory are changed so that the longitudinal-lateral conversion and the right-left conversion of an image can be carried out. Furthermore, in the zoom block, the contour correction for the digital image signal in the vertical direction is performed in accordance with the digital image signal in each small block, which has been zoom-processed.

Dependencies are inferred from the claim text.