Seam-Carved Image Tampering Detection Based on the Cooccurrence of Adjacent LBPs

Algorithm 1

Extraction of cooccurrence feature of adjacent LBPs.

	Input: an image, I
	Output: co-occurrence feature of adjacent LBPs of the image, CoALBP
(1)	Transform I into LBP domain based on Figure 5
(2)	Define four configurations of adjacent LBPs shown in Figure 6
(3)	Calculate the auto-correlation matrices based on formula (7)
(4)	Vectorize those matrices and obtain the CoALBP feature
(5)	Reduce the dimensionality of the feature using PCA