为了实现图像的N层分解，对一幅m行n列的黑白图像，对其进行规范化处理，使其能被2的N次方整除。...

代码说明：

为了实现图像的N层分解，对一幅m行n列的黑白图像，对其进行规范化处理，使其能被2的N次方整除。-In order to achieve the N layer image decomposition, the 1 m line n out in black and white images, the standardization of its processing, so that it can be divisible by 2 N-th power.