Based on edge detection, the system implemented the quick calculation on rocks area and perimeter with the developed arithmetic.

在边缘提取的基础上，系统利用自主设计的一套算法快速实现了对图像中岩块几何特征量(面积、周长)的计算。

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Located in the heart of Sydney Rocks area.

位于悉尼岩石区繁华地带。

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Located in the heart of Sydney Rocks area.

位于悉尼岩石区繁华地带。

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