1. An vision inspection apparatus comprising: a tri-stimulus measuring part configured to measure gray tri-stimulus values of a sample grayscale and color tri-stimulus values of a full-grayscale; a color tri-stimulus generating part configured to generate color tri-stimulus values of the sample grayscale using the gray tri-stimulus values of the sample grayscale and the color tri-stimulus values of the full-grayscale; and a color correction value generating part configured to generate a color grayscale correction value using the gray tri-stimulus values of the sample grayscale and the color tri-stimulus values of the sample grayscale.