但是在云中存在编码吗？
随机干扰不存在编码关系，所以联立采集有压制干扰的作用。
The simultaneous data acquisition can suppress noise because there is no encoding for random noise.
编码标志点由编码点和标志点组成，其中标志点提供位置信息，编码信息被编译储存在编码点的排布中。
Position information is provided by the marked points with the coding information compiled and stored in the coding points.
如果图像曾被改动过，两个编码会不匹配，说明存在编辑造假的行为。
If the image has been altered, the codes will not match, revealing the doctoring.
如果图像曾被改动过，两个编码会不匹配，说明存在编辑造假的行为。
If the image has been altered, the codes will not match, revealing the doctoring.
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