Splicing image forgery detection using textural features based on the grey level co‐occurrence matrices

Abstract

To further improve the detection rate with relatively low dimension feature vector, a novel passive splicing detection method using textural features based on the grey level co-occurrence matrices, namely TF-GLCM, is proposed in this study. In the TF-GLCM, the GLCM are calculated based on the difference block discrete cosine transform arrays to capture the textural information and the spatial relationship between image pixels sufficiently. The discriminable properties contained in the GLCM are described by six textural features, which include two new introduced ones and four independent ones. In addition, the statistical moments mean Me and standard deviation SD of textural features are used instead of themselves as elements in feature vector to reduce the dimensionality of feature vector and computational complexity. A support vector machine is employed for classification purpose. Experimental results show that the TF-GLCM achieves the detection rates of 98% on CASIA v1.0, and 97% on CASIA v2.0 with 96-D feature vector. The detection rates benefit from the two new textural features. Meanwhile, the TF-GLCM is superior to some state-of-the-art methods with lower dimension feature vector.