In this algorithm, many basic geometric transformations of digital images are unified. These transformations include scaling, rotating, shearing, flipping, and mirroring, etc.

用这个算法可以处理的图像几何变换包括：图像旋转，图像变倍，图像剪切，以及图像翻转，镜像变换等。

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Then it introduces receiving signal as reliability evaluate or weighted coefficient of hard-decision, consequently presents weighted bit-flipping decoding algorithm based on check sum.

在此基础上引入接收信号作为可靠性评估，使评估值作为硬判决的加权系数，从而提出基于校验和的加权位翻转解码算法。

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