Howtosignalprocessing
- How does Canny's edge detector improve the edge continuity and edge connectivity?
- What is contour detection in image processing?
How does Canny's edge detector improve the edge continuity and edge connectivity?
The Canny edge detection algorithm is most widely used edge detection algorithm because of its advantages. The Canny edge detector classifies a pixel as an edge if the gradient magnitude of the pixel is larger than those of pixels at both its sides in the direction of maximum intensity change.
What is contour detection in image processing?
Using contour detection, we can detect the borders of objects, and localize them easily in an image. It is often the first step for many interesting applications, such as image-foreground extraction, simple-image segmentation, detection and recognition.
