四元数表示旋转矩阵，代替了传统的欧拉角解算外方位元素-Quaternion rotation matrix, Euler angles instead of the traditional elements of exterior orientation Solution

利用C#来实现基本的数字图像处理，包括彩色图像灰度化、基于像素矩阵变换的90度旋转(两个方向)、改变亮度和对比度-using C# to process digital image， including converting a color image to a gray image，90 degree rotation based on matrix of pixels(two directions)，changing brightness and contrast of the image

数据结构矩阵旋转 任意构造一个n×n矩阵，将该矩阵逆时针旋转90度并输出 输入的矩阵的阶数0≦n≦50，当输入为0到50之间的小数时，系统自动为其取整-Arbitrary rotation matrix data structure to construct a nn matrix, the matrix is ​ ​ rotated 90 degrees counterclockwise and outputs the input matrix order 0 ≦ n ≦