Patent ID: 11861816
Assignee: NHN CLOUD CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A method for detecting image forgery performed by a processor of a terminal, the method comprising:
receiving an input image for determining the image forgery;
applying the input image to a high-pass filter to enhance features associated with the image forgery;
extracting image manipulated feature information from the image applied to the high-pass filter through a pre-trained convolutional neural network;
refining the image manipulated feature information;
determining the image forgery of the input image based on the refined image manipulated feature information, wherein the determining of the image forgery of the input image includes detecting pixels that have been probably manipulated in the input image and calculating manipulation probability values of the pixels; and
outputting an image forgery confirmation map displaying probability of the image forgery of the pixels in different colors according to the calculated probability values.