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 …

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 …