Fig 1.
(a) Original image, reproduced with permission from CASIA dataset (b) Copy move forgery (c) Copy move forgery hiding objects (d) Multiple copy move forgery, (b-d) Copy-move forgeries generated by our proposed method.
Fig 2.
Classification of copy move forgery detection techniques.
Fig 3.
Flowchart of Transformed multiple copy-move forgery, The input image reproduced with permission from CASIA dataset and Transformed copy move forged image is generated by our method.
Fig 4.
Original image, reproduced with permission from CASIA dataset and patch image is generated by our method.
Fig 5.
Patch images (a) Patch image size 1, (b) Patch image size 2, (a) and (b) Images are generated by our method.
Fig 6.
Image preprocessing (a) Original RGB image, reproduced with permission from CASIA dataset, (b) YCbCr image, (c) Separating Y, Cb and Cr bands, (b)(c) Image is generated by our method.
Fig 7.
Patch preprocessing (a) Patch RGB image (b) YCbCr patch image (c) Separating Y, Cb and Cr bands, (a)(b)(c) Images are generated by our method.
Fig 8.
First level of wavelet decomposition.
Fig 9.
Applying Wavelet Transform (a), (b), (c) Wavelet processed original and patch image Y, Cb and Cr bands.
(d), (e), (f) Inverse Wavelet transform of processed image Y, Cb and Cr bands, Image is generated by our method.
Fig 10.
Post processing (a) Concatenation of Y, Cb and Cr band (b) YCbCr forged image (c) Conversion of YCbCr to RGB color domain, images are generated by our method.
Fig 11.
Example images of proposed method (a) Original Gulf image (b) Transformed multiple copy move gulf image with same patch size (c) Original animal image (d) Transformed multiple copy move animal image with same patch size (e) Original kiwi image (f) Transformed multiple copy move kiwi image with same patch size (g) Original lake image (h) Transformed multiple copy move image with different patch size (i) Original geometrical design image (j) Transformed multiple copy move geometrical design image with different patch size (k)Original balloon image (l) Transformed multiple copy move balloon image with different patch size.
(a),(c),(g),(i) reproduced with permission from CASIA dataset, (b), (d), (f), (h), (j), (i) images are generated by our method. (k) reproduced with permission from http://www.famousfix.com/topic/owl-city-hot-air-balloon-album) (e) reproduced with permission from (https://unsplash.com/s/photos/kiwi-fruits).
Fig 12.
Transformed multiple copy move forgery, reproduced with permission from http://www.famousfix.com/topic/owl-city-hot-air-balloon-album).
Fig 13.
Multi region transformed copy move forgery with different patch sizes, reproduced with permission from http://www.famousfix.com/topic/owl-city-hot-air-balloon-album).
Fig 14.
Copy move forgery with hiding objects (a) Original image, reproduced with permission from CASIA Dataset (b) Transformed copy move image, image is generated by our method.
Fig 15.
Detection Results (a) Original image (b) Multi Region Transformed multiple Copy move balloon image, (c) Soumya’s method detection results, (d) Patrick’s Method detection results.
Original image reproduced with permission from the http://www.famousfix.com/topic/owl-city-hot-air-balloon-album) (b) image generated by our method, and (c), (d) show the detection results on (b).
Fig 16.
Detection results (a) Original image (b) Multi Region Transformed multiple copy move kiwi image, (c) Soumya’s method detection results, (d) Patrick’s Method detection results.
Original image reproduced with permission from the (https://unsplash.com/s/photos/kiwi-fruits). (b) image generated by our method, and (c), (d) show the detection results on (b).
Fig 17.
Detection results (a) Original image (b)Multi Region Transformed multiple copy move balloon image with different patch sizes, (c) Soumya’s method detection results, (d) Patrick’s Method detection results.
Original image reproduced with permission from the (http://www.famousfix.com/topic/owl-city-hot-air-balloon-album). (b) image generated by our method, and (c), (d) show the detection results on (b).
Fig 18.
Detection results (a) Original image (b) Multi Region Transformed multiple copy move lake image with different patch sizes, (c) Soumya’s method detection results, (d) Patrick’s method detection results.
Original image reproduced with permission from the CASIA dataset. (b) image generated by our method, and (c), (d) show the detection results on (b).