| 摘要 |
[Problem] To make it possible for an operator to rapidly plot the position of each feature point in a fingerprint image. [Solution] A fingerprint feature point display input device provided with: an image output controller (11) for displaying, on a display screen (3), a fingerprint image and a pointer for designating a feature point on the fingerprint image; and a feature point input setting unit (12) for displaying a feature point display mark on the feature point; wherein the fingerprint feature point display input device is provided with a grayscale value adjustment unit (13) for setting, on the basis of an external command, the grayscale intensity of the entire fingerprint image on which the pointer is positioned, the setting being performed within a range of a display grayscale width comprising an upper-limit grayscale value and a lower-limit grayscale value. The screen output controller (11) is provided with a grayscale width update function for displaying an updated output display of the fingerprint image in the display grayscale width that has been set, and a grayscale width fixing and holding function for fixedly holding the display grayscale width that has been set as a set display grayscale width for the feature point display input when there is no new setting information regarding the display grayscale width. |
