中文说明：在MATLAB中求图像纹理特征，结合PCA的尺度不变特征变换(SIFT)算法，正确率可以达到98％，包括四元数的各种计算,鲁棒性好，性能优越，可以动态调节运行环境的参数。
English Description：
In MATLAB for image texture feature, combined with PCA scale invariant feature transform (SIFT) algorithm, the correct rate can reach 98%, including various calculations of quaternion and good robustness, superior performance, can dynamically adjust the parameters of the running environment.