暴马丁香叶面积的回归测算

利用扫描仪获取暴马丁香叶片图像,通过图像方格法测其叶面积,与实测叶长、叶宽及叶长×叶宽分别进行回归分析。结果表明,呈幂函数关系。对比发现叶宽、叶长×叶宽回归模型的拟合精度较差,而叶长回归模型误差很小,相关系数达0.991 9,叶面积对叶长幂函数回归方程y=-0.385 3×2.026 9效果最佳,证明回归方程极显著,系统误差为-0.5320%。

Regression Estimates of Area of Syringa Reticulata Geraniol

Using a scanner to get Syringa Reticulate leave's image,through the image grid method to measure the leaf area,and make the regression analysis to the actual measurement of the leaf length,leaf length × leaf width,leaf width respectively.The result shows that is a power function relationship.According to the contrast,leaf width,leaf length × leaf width regression model fitting accuracy is a little poor,but the leaf length regression model error is very small,the correlation coefficient is 0.991 9,the best effect power function regression equation of the area to the leaf length is y =-0.385 3×2.026 9,it proves that the regression equation is very significant,system error is-0.5320%.