Ask Your Question

How to access pixels along a line or curve using opencv?

asked 2013-05-16 11:21:15 -0500

wuling gravatar image

Hi all, is any method to access pixels along a line or curve in opencv???

edit retag flag offensive close merge delete

1 answer

Sort by » oldest newest most voted

answered 2013-05-16 11:34:49 -0500

berak gravatar image

for a straight line between 2 points, there's the LineIterator.

unfortunately it does not work with curves or arbitrary shapes, you might try findContours to get an array of waypoints

edit flag offensive delete link more



If you would like to access pixels on a curve, you could basically store the coördinates first by create a binary image of your image versus the line, using lineiterator to go over each row or column and storing the coördinates of each point that has a 1 value.

StevenPuttemans gravatar imageStevenPuttemans ( 2013-05-16 12:07:59 -0500 )edit
Login/Signup to Answer

Question Tools


Asked: 2013-05-16 11:21:15 -0500

Seen: 5,327 times

Last updated: May 16 '13