Edge detection of objects and living cells from the surroundings

The edges characterize the boundaries, so it is a fundamental problem in image processing. The border, like the shadow, is not a physical reality, and is where the image is all or beginning. The image can be viewed as where the page Consider the vertical and horizontal objects of the body, or it can be thought of as something between the bright and dark windows of the night. In simple terms, the edge is not thick. In certain cases, an edge-finding algorithm can use its own self-image features. For example, an edge that finds boundaries in the form of a straight line can be good for detecting objects like buildings.