Journal
DIGITAL SIGNAL PROCESSING
Volume 39, Issue -, Pages 50-62Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.dsp.2015.01.006
Keywords
Composite image; Tampering detection; Image component; Feature inconsistency; Sensor pattern noise
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Funding
- National Science Council of Taiwan [NSC102-2221-E-346-007, MOST103-2221-E-346-007]
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This paper proposes an effective composite image detection method that uses the feature inconsistency of image components of the composite image to detect tampered regions. The composite image is first divided into image components. Next, the variance of the noise remaining after de-noising in each image component is calculated and used as a feature. Finally, tampered regions are detected using this feature based on a tampering detection rule. Experimental results show that the proposed method has good composite image detection performance. (C) 2015 Elsevier Inc. All rights reserved.
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