Please use this identifier to cite or link to this item:
http://hdl.handle.net/10609/100966
Title: | Detection of classifier inconsistencies in image steganalysis |
Author: | Lerch-Hostalot, Daniel Megias, David |
Others: | Universitat Oberta de Catalunya. Internet Interdisciplinary Institute (IN3) |
Citation: | Lerch-Hostalot, D. & Megías, D. (2019). Detection of classifier inconsistencies in image steganalysis. 7th ACM Workshop on Information Hiding and Multimedia Security. Proceedings, 2019 (), 222-229. doi: 10.1145/3335203.3335738 |
Abstract: | In this paper, a methodology to detect inconsistencies in classification-based image steganalysis is presented. The proposed approach uses two classifiers: the usual one, trained with a set formed by cover and stego images, and a second classifier trained with the set obtained after embedding additional random messages into the original training set. When the decisions of these two classifiers are not consistent, we know that the prediction is not reliable. The number of inconsistencies in the predictions of a testing set may indicate that the classifier is not performing correctly in the testing scenario. This occurs, for example, in case of cover source mismatch, or when we are trying to detect a steganographic method that the classifier is no capable of modelling accurately. We also show how the number of inconsistencies can be used to predict the reliability of the classifier (classification errors). |
Keywords: | steganalysis cover source mismatch machine learning |
DOI: | 10.1145/3335203.3335738 |
Document type: | info:eu-repo/semantics/conferenceObject |
Issue Date: | Sep-2019 |
Publication license: | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Appears in Collections: | Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
dlerch2019.pdf | 750,2 kB | Adobe PDF | View/Open |
Share:
This item is licensed under a Creative Commons License