Gray

代码说明：

说明：  进行Gray码的图像变化，思想是进行位操作，首先将原始图先的每一位取出来， 然后将十进制转化位二进制，将其按位取出，进行变换，得到变换后图像的每一位的值，再进行组合即可(Gray code for the image change idea is to place operation, first the original plan to take out each and every first and then bit binary decimal conversion, be removed by bit, for transformation, transformed the image of each of value, then the combination can be)