绘制阀片图像 ，绘制多项式拟合响应效果图。 判断多项式拟合的精度(Draw valve image and draw polynomial fitting response diagram. Judge the accuracy of polynomial fitting)

采用二次型多项式模拟出噪声，在采用RLS算法对图像噪声进行校正(The quadratic polynomial is used to simulate the noise, and the RLS algorithm is used to correct the image noise.)