进行逐步线性回归，在MATLAB中求图像纹理特征，仿真效率很高的，包括脚本文件和函数文件形式，结合PCA的尺度不变特征变换(SIFT)算法，自己编的5种调制信号，在matlab环境中自动识别连通区域的大小,预报误差法参数辨识-松弛的思想。- Stepwise linear regression, In the MATLAB image texture feature, High simulation efficiency, Including scr ipt files and function files in the form, Combined with PCA scale invariant feature transform (SIFT) algorithm, Own five modulation signal, Automatic identification in the matlab environment the size of the connected area, Prediction Error Method for Parameter Identification- the idea of relaxation.