Then the binary edge image is processed using morphologic operator, so as to improve detecting land area easily and getting more accuracy coastline.

对得到的边缘进行形态学处理，利用设定的面积阈值将图像分为主体陆地区域和孤立陆地区域，进一步可以屏蔽陆地。

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Then the binary edge image is processed using morphologic operator, so as to improve detecting land area easily and getting more accuracy coastline.

对得到的边缘进行形态学处理，利用设定的面积阈值将图像分为主体陆地区域和孤立陆地区域，进一步可以屏蔽陆地。

youdao