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Machine Learning Based Digital Image Forensics And Steganalysis, Guanshuo Xu
Machine Learning Based Digital Image Forensics And Steganalysis, Guanshuo Xu
Dissertations
The security and trustworthiness of digital images have become crucial issues due to the simplicity of malicious processing. Therefore, the research on image steganalysis (determining if a given image has secret information hidden inside) and image forensics (determining the origin and authenticity of a given image and revealing the processing history the image has gone through) has become crucial to the digital society.
In this dissertation, the steganalysis and forensics of digital images are treated as pattern classification problems so as to make advanced machine learning (ML) methods applicable. Three topics are covered: (1) architectural design of convolutional neural networks …
Forensic Research On Detecting Seam Carving In Digital Images, Jingyu Ye
Forensic Research On Detecting Seam Carving In Digital Images, Jingyu Ye
Dissertations
Digital images have been playing an important role in our daily life for the last several decades. Naturally, image editing technologies have been tremendously developed due to the increasing demands. As a result, digital images can be easily manipulated on a personal computer or even a cellphone for many purposes nowadays, so that the authenticity of digital images becomes an important issue. In this dissertation research, four machine learning based forensic methods are presented to detect one of the popular image editing techniques, called ‘seam carving’.
To reveal seam carving applied to uncompressed images from the perspective of energy distribution …