In order to detect the sheet number of layered structures in print industry

a texture analysis based method is proposed. This method detects pages of print by analyzing side image of the target. The main process has four steps: At first

a Gabor filter is designed to enhance the texture in input image. Then

a serial of one-dimensional signals are extracted from the enhanced image using projection method. Third

empirical mode decomposition (EMD) is used to analyze these signals

which contain complex noise

to obtain the corresponding estimate of sheet number. Finally

the result is determined by the mode of all estimates. We designed two experiments to test stability and accuracy of the algorithm and proved its effectiveness.