Thirdly, pavement dilapidation image is divided into subblock image, and the marginal information is extracted from subblock image by the region detection algorithm.
利用了区
算法，将路面破损图像划分成子块图像，提取破损路面的边缘信息；
;,破;
;
;
,重点恢复;Thirdly, pavement dilapidation image is divided into subblock image, and the marginal information is extracted from subblock image by the region detection algorithm.
利用了区算法，将路面破损图像划分成子块图像，提取破损路面的边缘信息；
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