IMAGE DATA CONVERSION DEVICE, IMAGE DATA CONVERSION METHOD, PROGRAM, AND RECORDING MEDIUM

摘要

Provided is an image data conversion device (24) which converts input image data (1) having a predetermined resolution into delta arrangement image data (2) having a smaller resolution by the linear interpolation method.  The image data conversion device (24) includes: an even-number row pixel value conversion unit which converts a value of each pixel in each even-number row in the input image data (1) into a value of each pixel in each even-number row (2b) in the delta arrangement image data (2) by using an initial value of a predetermined even-number row; and an odd-number row pixel value conversion unit which converts a value of each pixel in each odd-number row of the input image data (1) into a value of each pixel of each odd-number row (2a) in the delta arrangement pixel data (2) by using an odd-number initial value (1 plus/minus a)/2 (wherein 0 = a = 0.5) of the initial value of the even-number row.