Image processing method and image inspecting method

An image inspecting method of implementing inspection of authenticity of a digital image, which is acquired from a falsification-vulnerable environment and has been subjected to processing for proof of authenticity by an image processing method of processing a digital data as an object, which can exist temporarily or continuously in a falsification-vulnerable environment, so as to enable proof of authenticity thereof, the image processing method comprising:

• a first extraction step extracting from an unprocessed digital image, at least a part of the unprocessed digital image as processing object information;
• a first operation step of subjecting the processing object information to a first morphology operation using a predetermined first structuring element, to obtain first morphology image information;
• and
• a first generation step of generating a processed digital image containing the first morphology image information,
• the image inspecting method comprising:
• a second extraction step of extracting from the acquired digital image, at least a part of the acquired digital image as inspection object information;
• a second operation step of subjecting the inspection object information to a second morphology operation using a second structuring element which is the same as the first structuring element, to obtain second morphology image information;
• a second generation step of generating a digital image for inspection containing the second morphology image information;
• and
• a determination step of determining authenticity of the acquired digital image, based on difference information between the digital image for inspection and the acquired digital image.

An image inspecting method of implementing inspection of authenticity of a digital image, which is acquired from a falsification-vulnerable environment and has been subjected to processing for proof of authenticity by the image processing method of processing a digital data as an object, which can exist temporarily or continuously in a falsification-vulnerable environment, so as to enable proof of authenticity thereof, the image processing method comprising:

• a first extraction step of extracting from an unprocessed digital image, at least a part of the unprocessed digital image as processing object information;
• a first operation step of subjecting the processing object information to a first morphology operation using a predetermined first structuring element, to obtain first morphology image information,
• a first generation step of generating a processed digital image containing the first morphology image information,
• wherein the first extraction step extracts, as a processing object component, at least one of a plurality of image components resulting from component decomposition of the unprocessed digital image, as to one of frequency components, color components, luminance components, and bit planes of the unprocessed digital image,
• wherein the first operation step subjects the processing object component to the first morphology operation to obtain the first morphology image information,
• wherein the first generation step performs component composition to combine the first morphology image information with the remaining image components except for the processing object component out of the plurality of image components, and
• the image inspecting method comprising:
• a second extraction step of extracting as inspection object information at least one of a plurality of image components resulting from component decomposition of the acquired digital image, as to any one of frequency components, color components, luminance components, and bit planes of the acquired digital image;
• a second operation step of subjecting the inspection object information to a second morphology operation using a second structuring element which is the same as the first structuring element, to obtain second morphology image information;
• a second generation step of performing component composition to combine the second morphology image information with the remaining image components except for the inspection object component out of the plurality of image components, to generate a digital image for inspection;
• and
• a determination step of determining authenticity of the acquired digital image, based on difference information between the digital image for inspection and the acquired digital image.

An image inspecting method of implementing inspection of authenticity of a digital image, which is acquired from a falsification-vulnerable environment and has been subjected to processing for proof of authenticity by the image processing method of processing a digital data as an object, which can exist temporarily or continuously in a falsification-vulnerable environment, so as to enable proof of authenticity thereof, the image processing method comprising:

• a first extraction step of extracting from an unprocessed digital image, at least a part of the unprocessed digital image as processing object information;
• a first operation step of subjecting the processing object information to a first morphology operation using a predetermined first structuring element, to obtain first morphology image information;
• and
• a first generation step of generating a processed digital image containing the first morphology image information;
• wherein the first extraction step extracts, as a processed digital image containing the first morphology image information,
• wherein the first extraction step extracts, as a processing object image, one or more partial images of a specific shape of each of which forms a part of the digital image, from the unprocessed digital image,
• wherein the first operation step subjects the processing object image to the first morphology operation to obtain the first morphology image information,
• wherein the first generation step changes image information of a region corresponding to the processing object image, in the unprocessed digital image, so as to contain the first morphology image information, and
• the image inspecting method comprising:
• a second extraction step of extracting a whole of the acquired digital image as an inspection object image;
• a second operation step of subjecting the inspection object image to a second morphology operation using a second structuring element which is the same as the first structuring element, to obtain second morphology image information;
• a second generation step of generating a difference image between the second morphology image information and the acquired digital image, as a digital image for inspection;
• and
• a determination step of determining authenticity of the acquired digital image, based on the digital image for inspection generated.