1 | initial version |
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 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.
2 | teeny weeny improvement. |
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. 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.