Journal of Applied Sciences ›› 2018, Vol. 36 ›› Issue (2): 321-330.doi: 10.3969/j.issn.0255-8297.2018.02.011

• Special Issue: Information Security of Multimedia Contents • Previous Articles     Next Articles

Local Blur Detection of Digital Images Based on Deep Learning

YANG Bin1,4, ZHANG Tao2, CHEN Xian-yi3   

  1. 1. School of Design, Jiangnan University, Wuxi 214122, Jiangsu Province, China;
    2. School of Internet of Things, Jiangnan University, Wuxi 214122, Jiangsu Province, China;
    3. School of Computer and Software, Nanjing University of Information Science and Technology, Nanjing 210044, China;
    4. Key Laboratory of Advanced Process Control of Light Industry of Ministry of Education, Jiangnan University, Wuxi 214122, Jiangsu Province, China
  • Received:2018-02-06 Online:2018-03-31 Published:2018-03-31

Abstract:

Blurring is generally a post-operation to conceal or remove the trace of tampering. In this paper, a new convolutional neural network model is proposed, and the corresponding network topology is presented to handle the problems in the detection of blur operations, such as Gaussian blur, average blur, or median blur. An information process layer is added into the conventional convolutional neural network to extract the residual features of fltering frequency domain, accordingly, improving the accuracy of blur detection between the frst-order and the second-order fltering operations. Experimental results demonstrate that the proposed method performs a higher accuracy in blur detection than traditional methods, and is able to discriminate between the common linear and nonlinear blur operations.

Key words: deep learning, image forensic, blur detection, convolutional neural network, fltering detection

CLC Number: