Restricting domain of HoughLines (Feature #3438)

Added by Scott Graybill about 11 years ago. Updated about 11 years ago.

Status:Done Start date:2013-12-16
Priority:Low Due date:
Assignee:- % Done:

0%
Category:imgproc, video
Target version:3.0-alpha Estimated time:2.00 hours
Difficulty:Easy Pull request:https://github.com/Itseez/opencv/pull/2153

Description

The full domain of values for theta is sometimes not needed in the Hough transform. e.g. if you are only interested in near vertical lines then you may only need values of theta between -10 deg and 10 deg. Searching a smaller space will reduced the computational cost.

It is implemented in MATLAB (http://www.mathworks.com/help/images/ref/hough.html)

A hacked version of this feature can be found at http://stackoverflow.com/questions/3444634/search-for-lines-with-a-small-range-of-angles-in-opencv

History

#1
Updated by Anna Kogan about 11 years ago

Hello Scott,

Thank you for reporting the problem. If you could work on a solution for the issue, a contribution (see How_to_contribute) would be very appreciated!

  • Priority changed from Normal to Low
  • Assignee changed from Vadim Pisarevsky to Scott Graybill

#2
Updated by Andrew Senin about 11 years ago

  • Status changed from New to Open

#3
Updated by Vladislav Vinogradov about 11 years ago

  • Pull request set to https://github.com/Itseez/opencv/pull/2153
  • Assignee deleted (Scott Graybill)

#4
Updated by Andrey Pavlenko about 11 years ago

  • Status changed from Open to Done
  • Target version set to 3.0-alpha

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