| http://www.w3.org/ns/prov#value | - In a case the operator operated object is a glove as shown in FIG. 2 or an instrument as shown in FIG. 3 in which the feature points P are marked by the distinctive colors, the color data for distinctive colors used for the feature points P to be extracted are memorized in advance, such that the image regions having the same colors as the memorized color data can be extracted from the image data a
|
