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IPCV
2007

QIM-Based Histogram-Preserving and High Capacity Steganography for JPEG Images

14 years 5 days ago
QIM-Based Histogram-Preserving and High Capacity Steganography for JPEG Images
- We propose a secure steganographic approach with a high capacity. We first use small neighborhoods of the original histogram to calculate the minimum remapping from a histogram to the odd-only and even-only histograms. We then employ a quantization index modulation-based odd-even embedding to preserve the histogram of each embedding subchannel. A minimum distortion remapping policy is used to decide the quantization value so the coefficient is increased or decreased according to a constant probability. Our embedding ensures the modification occurs in a small neighborhood and the details of the original histogram are maintained. We extensively compare our approach with two state-of-the-art steganographic approaches, MB1 and MB2, using Fridrich’s 23-feature-based blind steganalysis tool with a linear discriminant analysis. The results show that our method achieves better embedding capacity, comparable image quality, and comparable security to MB1 and MB2.
Xiaojun Qi, Daniel Lewis
Added 29 Oct 2010
Updated 29 Oct 2010
Type Conference
Year 2007
Where IPCV
Authors Xiaojun Qi, Daniel Lewis
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