Pixel-level image authentication, tampering detection and restoration method
An image authentication and tampering detection technology, applied in image enhancement, image data processing, image data processing, etc., can solve the problem that the block-level scheme cannot locate tampered pixels, the recovery quality of non-smooth image blocks is poor, and the tampering localization ability It can improve the practicality of the technology, save the storage space, and improve the detection rate.
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[0089] The specific embodiments of the present invention will be described below in conjunction with the drawings.
[0090] figure 1 A flow chart of the processing operation of different types of pictures in the present invention is given. In the present invention, related operations can be performed on images such as grayscale images and color images, and therefore, the judgment operation can be performed on the picture before implementing the scheme.
[0091] Such as figure 1 As shown, the method M100 starts from step S110, step S120 reads the picture to be processed, and step S130 determines the type of the picture. If the picture is a color picture, perform step S140 to divide the picture into three planes R, G, and B, and perform the embedded watermark mentioned later on the picture in step S150, step S160, step S170, step S180, and step S190 , Authenticity verification, tampering location, tampering recovery and other operations. Finally, in step S1100, the processing result...
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