PURPOSE: To enable an inexperienced person also to execute accurate inspection reducing measuring dispersion by picking up the image of a surface by a CCD camera and measuring the events of a display image based upon the image pickup data.

CONSTITUTION: After connecting the CCD camera 3 to a monitor equipment 2 and setting up the image pickup enabled state of a screen, a keyboard 8 is operated to display a menu screen on a display device 6. Then, automatic measurement is started based upon a command from the keyboard 8 and a testing command is outputted from an arithmetic unit 5 to the monitor equipment 2. At the time of starting automatic measurement, a pattern is displayed on a monitor screen. When data are matched with a rated value as the result of inspection, the result is printed out by a printer 7.