Steganalytic features for JPEG compression-based perturbed quantization
IEEE SIGNAL PROCESSING LETTERS, cilt.14, sa.3, ss.205-208, 2007 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 14 Sayı: 3
- Basım Tarihi: 2007
- Doi Numarası: 10.1109/lsp.2006.884010
- Dergi Adı: IEEE SIGNAL PROCESSING LETTERS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.205-208
- Bursa Uludağ Üniversitesi Adresli: Hayır
Özet
Perturbed quantization (PQ) data hiding is almost undetectable with the current steganalysis methods. We briefly describe PQ and propose singular value decomposition (SVD)-based features for the steganalysis of JPEG-based PQ data hiding in images. We show that JPEG-based PQ data hiding distorts linear dependencies of rows/columns of pixel values, and proposed features can be exploited within a simple classifier for the steganalysis of PQ. The proposed steganalyzer detects PQ embedding on relatively smooth stego images with 70% detection accuracy on average for different embedding rates.