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林业科学 ›› 2014, Vol. 50 ›› Issue (4): 84-89.doi: 10.11707/j.1001-7488.20140412

• 论文与研究报告 • 上一篇    下一篇

基于图像处理的微波处理材裂纹评价

林兰英, 何盛, 傅峰, 周永东   

  1. 中国林业科学研究院木材工业研究所 国家林业局木材科学与技术重点实验室 北京 100091
  • 收稿日期:2013-06-25 修回日期:2013-09-22 出版日期:2014-04-25 发布日期:2014-05-06

Evaluation of the Cracks in Microwave-Treated Lumbers Based on Image Processing

Lin Lanying, He Sheng, Fu Feng, Zhou Yongdong   

  1. Key Laboratory of Wood Science and Technology of State Forestry Administration Research Institute of Wood Industry, CAF Beijing 100091
  • Received:2013-06-25 Revised:2013-09-22 Online:2014-04-25 Published:2014-05-06

摘要:

采用高强度微波处理方法用于木材的功能化改性研究过程中,为了对微波处理效果进行评价,需要了解处理材表面的裂纹特征信息。利用Matlab软件中的图像处理模块,通过编程对微波处理木材表面裂纹的彩色扫描图像进行图像类型转换、图像增强、图像分割及图像形态学处理,提取图像中存在的裂纹,并最终对裂纹数量、长度、面积等信息进行统计,可以实现对微波处理木材表面裂纹状态的科学评价。

关键词: Matlab, 木材裂纹, 图像处理, 评价

Abstract:

In order to evaluate the status of cracks in microwave-treated lumbers during the research of microwave wood functional modification. A method of evaluation the wood cracks based on the Matlab image processing was developed. It was applied to statistically analyze the cracks in microwave-treated lumbers. The method can be used to process pictures of wood cracks taken from scanner. The cracks can be outstanding from other areas after the steps of turning the RGB figures to gray figures, subtracting the background of the figure, adjusting the contrast gradient, thresholding the gray figure. Then write a procedure and run it in the Matlab software, the number, the length, the area and other statistical results of the cracks in the processed figure can be obtained.

Key words: Matlab, wood cracks, image processing, evaluation

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