Patent ID: 8355583

Claim:
An image processing apparatus, the image processing apparatus comprising: an extraction unit configured to extract a feature amount from information recorded on a recording medium; a storage unit configured to store the feature amount and time information from a particular time when the information is recorded on the recoding medium, wherein the time information from the particular time when the information is recorded on the recording medium is associated with the feature amount; a search unit configured to compare a feature amount extracted from a predetermined medium by the extraction unit as a query with the feature amount stored in the storage unit, wherein, based on a result of the comparison, a recording medium with a high degree of similarity to the predetermined medium is determined as a search result; an acquisition unit configured to acquire an identification image, from an image captured by a monitoring camera taking a picture around the image processing apparatus, identifying an operator of the image processing apparatus based on time information from the particular time when information is recorded on the recording medium determined as the search result by the search unit; and an output unit configured to output the identification image acquired by the acquisition unit.