Patent ID: 6903745

Claim:
An image processing apparatus comprising: first signal generating means for generating a first signal on the basis of an input image signal; first memory means for storing a plurality of pattern data; read-out means for reading out first and second patterns stored in the first memory means, in accordance with the first signal generated from the first signal generating means; third pattern producing means for producing a third pattern on the basis of the first and second patterns read out by the read-out means; second signal generating means for generating a second signal on the basis of the image signal; second memory means for prestoring a fourth pattern; fifth pattern generating means for generating a fifth pattern on the basis of the fourth pattern stored in the second memory means and the second signal generated from the second signal generating means; position calculation means for calculating an intra-pattern position signal indicative of a position within the patterns; and interpolation calculation means for calculating, in accordance with the intra-pattern position signal calculated by the position calculation means, an output pixel value on the basis of a first pixel value within the first pattern corresponding to the intra-pattern position, a second pixel value within the third pattern corresponding to the intra-pattern position, and a third pixel value within the fifth pattern corresponding to the intra-pattern position.