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- W2155955802 abstract "With the help of various image editing tools available, it has become easier to alter an image in such a way that it does not leave behind any clues. Copy –Move forgery is a type of image forgery in which a part of digital image is copied and pasted to another part of same image. Since the copied and pasted image comes from the same image, it becomes difficult to detect the forgery. Generally the intention behind CopyMove forgery is to hide important objects in an image. In this paper, an orthogonal wavelet transform based forgery detection method is proposed. Orthogonal wavelet transform is generated from basic orthogonal transforms. We consider generating Discrete Cosine Transform Wavelet (DCTW) transform and Walsh Wavelet (WW) transform from DCT and Walsh orthogonal transforms. The image is divided into overlapping blocks. On each block, DCTW and WW transforms are applied. From each block discriminative features are extracted from coefficients. These feature vectors are lexicographically sorted and block matching step is applied to find duplicated blocks. General Terms Image Forgery, Digital Forensics, Region Duplication Forgery" @default.
- W2155955802 created "2016-06-24" @default.
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- W2155955802 date "2014-02-14" @default.
- W2155955802 modified "2023-09-30" @default.
- W2155955802 title "Copy-Move Forgery Detection using Orthogonal Wavelet Transforms" @default.
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- W2155955802 doi "https://doi.org/10.5120/15375-3966" @default.
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