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Due to the popularity of JPEG compression standard, JPEG images have been widely used in various applications. Nowadays, detection of JPEG forgeries becomes an important issue in digital image forensics, and lots of related works have been reported. However, most existing works mainly rely on a pre-trained classifier according to the quantization table shown in the file header of the suspicious JPEG...
Compression history identification plays a very important role in digital multimedia forensics. However, most existing literatures mainly focus on digital image forensics, and just a few works consider digital audio. In this paper, we investigate two popular compression schemes in digital audio, that is, MP3 and WMA, and try to reveal the compression history for a questionable audio signal in the...
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