Printing image data generating device, thermal transfer printer, and computer program

Abstract

A printing image data generating device generates printing image data for a thermal transfer printer that heats a thermal head generating friction force depending on grayscale values to thermally transfer ink. The printing image data generating device includes: an image data acquirer configured to acquire image data as a printing subject; a density deviation line specifying section configured to specify density deviation lines at which density after printing is estimated to deviate from desired density attributed to sudden change in the friction force; a correction-subject pixel specifying section configured to specify, as a correction-subject pixel, a pixel whose variation degree of the grayscale value is lower than a predetermined value; a correcting section configured to correct the grayscale value of the specified correction-subject pixel in such a direction as to eliminate density deviation; and a generating section configured to generate the printing image data based on image data after correction.