Abstract: This paper presents an automatic evaluation method for the wood decaying degree based on tomographic images.Firstly,the wood tomographic image was partitioned by Graph Cuts,and conversed to grayscale.Then,the cumulative histogram technology was used to obtain the defect part area of the grayscale image.Finally,the measured values were compared with the real values,and the automatic evaluation for the wood decaying degree was implemented.The wood samples containing artificial decay or nature decay were used in our experiments.The experimental results show that the accuracy of the method we proposed is high,and this study provides a new method for the intelligent processing of wood tomographic images and the online application of nondestructive detection technology.

Key words: non-destructive testing of wood, tomographic images, automatic evaluation of decaying degree, image processing