Patent ID: 8189208
Filing Date: 2012-05-29
Classification: H04N

Abstract:
1. An image processing apparatus capable of decoding electronic data from image data including first encoded data generated by encoding said electronic data, and second encoded data generated by encoding information about a process of decoding said electronic data from said first encoded data, said image processing apparatus comprising: extraction means for extracting, based on said image data, paper fingerprint information of a recording medium from which said image data was read; analyzing means for analyzing said second encoded data; collating means for collating said extracted paper fingerprint information with collation paper fingerprint information using a matching degree when it is determined, as a result of analysis by said analyzing means, that a collating process of said extracted paper fingerprint information is required; and allowing means for allowing decoding of said electronic data from said first encoded data when a result of collation by said collating means indicates coincidence between the extracted paper fingerprint information and the collation paper fingerprint information, wherein the matching degree is calculated using a collation error E(i, j) indicated by the following equation: where x=0 to n and y=0 to m, and wherein α f α f