Color Image Steganalysis Based on Residuals of Channel Differences

• 作者: Chunfang Yang Fenlin Liu Tingting Zhang Xiangyang Luo Yuhan Kang
• 来源期刊: 计算机、材料和连续体(英文)
• 学科: 工学
• 关键词: COLOR CHANNEL CHANNEL difference COLOR image STEGANALYSIS STEGANOGRAPHY
• 年，卷（期）: 2019,（4）
• 页码范围: 315-329
• 页数: 15页
• 分类号: TP3

摘要

This study proposes a color image steganalysis algorithm that extracts highdimensional rich model features from the residuals of channel differences.First,the advantages of features extracted from channel differences are analyzed,and it shown that features extracted in this manner should be able to detect color stego images more effectively.A steganalysis feature extraction method based on channel differences is then proposed,and used to improve two types of typical color image steganalysis features.The improved features are combined with existing color image steganalysis features,and the ensemble classifiers are trained to detect color stego images.The experimental results indicate that,for WOW and S-UNIWARD steganography,the improved features clearly decreased the average test errors of the existing features,and the average test errors of the proposed algorithm is smaller than those of the existing color image steganalysis algorithms.Specifically,when the payload is smaller than 0.2 bpc,the average test error decreases achieve 4%and 3%.