图像边缘检测有什么用？
what's the use of Edge Detection of image?
canny得到边缘图像后，边缘图像有什么用？
有没有边缘图像的用例？
找到对象并从图像中分割它？或获取物体的锐度、面积和周长？
与维基百科一样，
Edge detection is the name for a set of mathematical methods which
aim at identifying points in a digital image at which the image
brightness changes sharply or, more formally, has discontinuities. The
points at which image brightness changes sharply are typically
organized into a set of curved line segments termed edges.
您可以使用它以编程方式查找图像的感兴趣区域。例如，您有室内楼层地图的激光图像，并且想要检测机器人可以访问的实际区域，这将很有用。您可以参考 google 更多内容。这只是现实世界中的一个例子。
canny得到边缘图像后，边缘图像有什么用？
有没有边缘图像的用例？
找到对象并从图像中分割它？或获取物体的锐度、面积和周长？
与维基百科一样，
Edge detection is the name for a set of mathematical methods which aim at identifying points in a digital image at which the image brightness changes sharply or, more formally, has discontinuities. The points at which image brightness changes sharply are typically organized into a set of curved line segments termed edges.
您可以使用它以编程方式查找图像的感兴趣区域。例如，您有室内楼层地图的激光图像，并且想要检测机器人可以访问的实际区域，这将很有用。您可以参考 google 更多内容。这只是现实世界中的一个例子。