IMAGE PROCESSING DEVICE AND IMAGE PROCESSING PROGRAM

摘要

An image processing device includes a multiplier 1 for multiplying a pixel signal P (x) by a weighting factor ±0 equal to or larger than 0 and equal to or smaller than 1, a delay element 2 for delaying the pixel signal P(x) which has not been multiplied yet by the weighting factor ±0 by the multiplier 1 by one pixel, and a multiplier 3 for multiplying the pixel signal P(x-1) which has been delayed by the delay element 2 by a weighting factor ±1 equal to or larger than 0 and equal to or smaller than 1, the total sum of the weighting factors ±0 and ±1 being larger than 1 and smaller than an upper limit ±max. An adder 4 adds the multiplication result ±0 · P(x) of the multiplier 1 and the multiplication result ±1·P(x-1) of the multiplier 3, and a limiter 5 limits the addition result P' (x) of the adder 4 in such a way that the addition result falls within a maximum density value Pmax.