Need some help

[Root_Canal]

I discovered that there is a line detector already in the IMAQ searching and matching palette. It seems to do a pretty good job. The attached vi lets you select line detection settings, open an image file, select of region of interest and then displays detected lines on the original image. Help text is selectable from the front panel. Experiment with the settings to improve the results. The line detection image updates as you adjust the settings.

root

Message Edited by Root Canal on 08-11-2008 02:25 PM

[Michelle_N]

rss,

Probably the easiest way to check if these lines are parallel is to run a Find Straight Edge Step  for each line, then compare the angle of each line to one another. If the angle is the same they are parallel, if they are off by a certain tolerance then they are not parallel.

Does this make sense?

[Orooj]

Thanks for the help........line detection tool is working fine for this seat but not working properly for the other texture.....

Warm Regards

Orooj Ahmed

[muks]

Obviously I wont and it shouldnt.Can you elaborate on the "texture"?

[Kyle_V]

In version 8.5 of the Vision Development Module, NI introduced a new advanced straight edge detection tool that uses several different algorithms.  One of them is a Hough-based edge detector that worked very well on the three images in this thread.  In version 8.6, we included these algorithms in other edge dection tools like the circular edge detector.

Kyle V

[Root_Canal]

Nicely done! That's a very clean result.