hi,
i tried the tutorial of Canny edge detection and Hough Line Transformation. In Canny we can get contours of a image. And using Hough Line Transform we can get lines, but i didn't understand is there any difference between lines and contours or are both same ? plz can anyone explain ?
Canny detects edges of things in an image, returning a black and white version of the image, where white pixels indicate part of an edge - the contours. The returned object is still an image (in effect a bitmap, if not a Bitmap).
Hough Lines takes the results from the Canny process and looks for straight sections among the highlighted edges and returns the end points of those straight lines, giving you a set of vector lines to play with.
Hi Barry, thank you very much for your effort and time. really appreciate.
Asked: 2013-03-18 05:06:53 -0600
Seen: 685 times
Last updated: Mar 18 '13
