Patent ID: 8761521

Claim:
A still image verifying apparatus, comprising: a memory; a processor coupled to the memory and configured to execute a process, the process including: storing a plurality of pieces of summary information generated respectively from a plurality of pieces of still image data, the plurality of pieces of still image data obtained by encoding a plurality of pieces of image data forming video image data in accordance with an image format; recording edited image data obtained by performing an edit process on still image data selected from the plurality of pieces of still image data, position information of a still image of the selected still image data relative to the video image data, the selected still image data, and edit information representing content of the edit process; generating, to implement verification of an authenticity of the edited image data, decoded still image data by retrieving the still image data corresponding to the edited image data and the edit information, and by performing a restoration process on the still image data in accordance with the edit information; determining whether the generated decoded still image data matches the edited image data as a verification target by comparing the generated decoded still image data with the edited image data; generating summary information by retrieving from the still image data corresponding to the edited image data as the verification target; retrieving, in accordance with the position information stored, summary information corresponding to the edited image data guaranteeing originality and comparing the generated summary information with the retrieved summary information to determine whether the generated summary information matches the retrieved summary information; and verifying the authenticity of the edited image data based on verification results of the retrieving and determination results of the determining.