In executing a job for combining a plurality of images and outputting the combined image, an information processing apparatus stores log information to allow a system administrator to later identify what image has been output while effectively saving the capacity of a storage device to be used.

Provided is an image processing apparatus including an image data obtaining unit that obtains image data of an original document including plural pages, a feature amount obtaining unit that obtains a predetermined feature amount for each of the pages based on the obtained image data, a detection unit that compares a feature amount of one page on which identification information for dividing the plural pages in units of pages is formed with a feature amount of the other pages and detects the identification information on a page having a feature amount similar to a feature amount of the one page from among the other pages, and a division unit that divides the plural pages in units of pages based on the detected identification information.

A method for inferring user activity statistics includes receiving job logs of a device infrastructure. Each job log including job information for a job performed for one of a set of users by one of a plurality of shared devices. A job descriptor is generated for each job based on the job log. The job is assigned to one of a set of defined job types based on the job descriptor. An activity matrix is composed where activity of each user for each of a plurality of time periods is represented as a fixed-length vector representing at least some of the job types. Each index of the vector is derived from a count of one job type for the user in that time period. The activity matrix is decomposed into first and second factor matrices to minimize an overall reconstruction error. User activity statistics are output based on the decomposition.

A document ID is recorded in an operation log, and an operation ID and document ID are recorded in a job log. The job log and operation log are set such that they can be searched in association with each other. An operation log record associated with a designated document record is read and added to a result list (S2104). Operation log records are read out one by one from the result list. If an associated document ID is found, it is added to a target document ID (S2109). Further, an operation log record associated with the found document ID is added to the result list (S2104).

A method of processing a photograph comprises capturing or downloading the photograph onto a mobile electronic device with text messaging capabilities. The photograph is then transmitted in a text message to a remote server which is able to identify the mobile electronic device, and to match the mobile electronic device with information stored in a database relating to the mobile electronic device. The photograph is transmitted to a printer for printing the photograph on a physical medium. The photograph on the physical medium is then transported to a destination point address contained in the information stored in the database.