Edge detection to find the boundary of an object in binary image

本压缩包中包含7张星载SAR图像，包含水域、桥梁、城市。分辨率较高，可以用于目标提取等处理。网上的SAR很难找，特意做了个合集-This compressed package contains 7 spaceborne SAR image with higher resolution, can be used for object extraction and other processing. The SAR is difficult to find online, deliberately

colour sensor for generating find colour of the object