In a server are stored (i) identification information of a reference image and (ii) a common process rule applied to input image data determined as being similar to the reference image. In a card is stored a merged process rule obtained by merging the common process rule with an individual process rule. Further, when a version of the merged process information is identical to a version of the common process information, a process based on the merged process information corresponding to the reference image determined as being similar to the input image data is carried out, and when these versions are not identical, the process based on the merged process information is not carried out. Consequently, it is possible to reduce the load of the user concerning operation for setting the content of the process for the input image data.