ILLUMINATION SETTING METHOD, APPARATUS AND COMPUTER-READABLE MEDIUM FOR A BRIGHTNESS TOOL OF AN IMAGE MEASURING APPARATUS

摘要

A current value corresponding to a relationship between an illumination intensity instruction value and illumination intensity is calculated based on a previously obtained relationship between a current flowing through a light emitting device and the illumination intensity. A calibration table including the illumination intensity instruction value, the current value, and the illumination intensity is created. A required illumination intensity is calculated during measurement. An illumination intensity instruction value corresponding to the required illumination intensity is calculated. The illumination intensity instruction value is set using the calibration table.

主权项

1. A method of setting illumination of an image measuring apparatus comprising:
calculating a current value corresponding to a relationship between an illumination intensity instruction value and illumination intensity based on a previously-obtained relationship between a current flowing through a light emitting device and the illumination intensity; creating a calibration table including the illumination intensity instruction value, the current value, and the illumination intensity; calculating a required illumination intensity during measurement; calculating an illumination intensity instruction value corresponding to the required illumination intensity; and setting the illumination intensity instruction value using the calibration table.