Exploring duplicated regions in natural images.

@article{Bashar2010ExploringDR,
  title={Exploring duplicated regions in natural images.},
  author={M Bashar and Kazuhide Noda and Noboru Ohnishi and Kinji Mori},
  journal={IEEE transactions on image processing : a publication of the IEEE Signal Processing Society},
  year={2010},
  volume={99}
}
Duplication of image regions is a common method for manipulating original images, using typical software like Adobe Photoshop, 3DS MAX, etc. In this study, we propose a duplication detection approach that can adopt two robust features based on discrete wavelet transform (DWT) and kernel principal component analysis (KPCA). Both schemes provide excellent representations of the image data for robust block matching. Multiresolution wavelet coefficients and KPCA-based projected vectors… CONTINUE READING
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