基于灰度图像的峰谷年轮识别方法研究

Research on Peak-valley Tree-ring Recognition Method Based on Gray Image

为准确、快速测量树木年轮信息,提出了基于灰度图像的峰谷年轮识别方法。首先把圆盘彩色图像转换成灰度图像,再把二维灰度图像数据转化为一维灰度补码数据,最后使用峰谷年轮识别算法对一维灰度图像的补码数据进行处理,获取树木年龄及年轮宽度信息。结果表明:峰谷年轮识别算法预测树木年龄精度和年轮宽度精度高达90%。该算法易于理解,为获取圆盘图像年轮信息提供一种简单、可行的方法。

In order to measure tree-ring information accurately and quickly,a peak-valley tree-ring recognition method based on gray image is proposed.Firstly,the disc color image is converted into gray image.Then the two-dimensional gray data is converted into one-dimensional gray complement data.Finally,the peak-valley tree-ring recognition algorithm is used to obtain the information of tree age and tree-ring width from the one-dimensional gray complement data.The results show that the accuracy of peak-valley tree-ring recognition algorithm in predicting tree age and tree-ring width is up to 90%.The algorithm is easy to understand and provides a simple and feasible method for obtaining the information of tree-rings from disk image.