Identifying Device Brand by Using Characteristics of Color Filter Array

Tang You Chang, Guo Shiang Lin, Shen Chuan Tai

Research output: Chapter in Book/Report/Conference proceedingChapter


In this paper, we propose a passive scheme for photorealistic com-puter generated image (PRCG) identification and device brand classification. To this end, a periodic phenomenon of variance of pixel values resulting from demosaicing process is analyzed in RGB color space. Based on the phenome-non, the proposed scheme is composed of color space transformation, high-pass filtering, feature extraction, and classification. To make the phenomenon ob-vious, a high-pass filter is performed. The periodic phenomenons in different directions are measured as features in the Fourier domain and combined with a hierarchical classifier for PRCG detection and brand identification simulta-neously. Experimental results show that our proposed scheme can not only detect photographic images (PIM) but also determine what brand of a camera is used.

Original languageEnglish
Title of host publicationAdvances in Intelligent Systems and Applications - Volume 2
Subtitle of host publicationProceedings of the International Computer
EditorsChang Ruay-Shiung, Peng Sheng-Lung, Lin Chia-Chen
Number of pages10
Publication statusPublished - 2013

Publication series

NameSmart Innovation, Systems and Technologies
ISSN (Print)2190-3018
ISSN (Electronic)2190-3026

All Science Journal Classification (ASJC) codes

  • Decision Sciences(all)
  • Computer Science(all)


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