给一图像，提取图像二维数组，即矩阵 。

用第一个子函数实现矩阵 中元素任意变换位置（元素值不变，只是不在原来的行列处了），画出变换后的图像，相当于把图像上锁。这个任意变换可用密码矩阵来实现。

-To an image, the image extracting two-dimensional array, in a matrix.

Realization matrix elements transform any position (element value unchanged, but not in the ranks of the original at a) with a first sub-function, the transformed image shown, which is equivalent to the image locked. The password can be used in any transformation matrix to achieve.