Then, the proper grayscale threshold and edge-detector are selected to obtain the binary image and the target boundary.

选取适当的阈值和边缘检测算子对候选目标进行图像二值分割和边缘提取；

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Then, the proper grayscale threshold and edge-detector are selected to obtain the binary image and the target boundary.

选取适当的阈值和边缘检测算子对候选目标进行图像二值分割和边缘提取；

youdao