From a taken image such as a radiation image, plural characteristic amounts
(two-dimensional characteristic amounts etc.) are extracted to judge the portion
(position) of the object on the taken image, and the result of judgment is displayed.
On the image displaying the result of judgment of the object position, the operator
confirms whether the object position is correctly judged, and, if the result is
erroneous, changes the result of judgment by changing means. Based on the result
of judgment changed by the operator or without such change, corresponding image
processing parameters are acquired from the parameter table prepared in advance.
Such image processing parameters are used for executing the image processing on
the taken image.
