IMAGE CONVERSION PROGRAM, RECORDING MEDIUM, IMAGE CONVERSION APPARATUS, AND IMAGE CONVERSION METHOD

A reduction in processing time of a process giving a blurring effect is achieved. An image conversion apparatus (100) extracts from among pixel rows parallel to an object pixel row, a pixel row of y =7 as a first pixel row overlapping an aperture shape (101). The image conversion apparatus (100) further extracts a pixel row of y =4 as a second pixel row having the number of pixels successively overlapping the aperture shape (101) equal to or greater than that of the first pixel row. The image conversion apparatus (100) calculates a value of a second pixel in the case of converting an original image (IN), by referring to a storage unit that stores a value of a first pixel in the case of converting the original image (IN). For example, the image conversion apparatus (100) defines an average of the value of the first pixel in the case of converting the original image (IN), a value of a diffusion source pixel (IN[5][2]), and a diffusion source pixel (IN[5][3]) as the value of the second pixel in the case of converting the original image (IN).