Edge Based Technique in LabVIEW

[DC20]

Hello. I need some help, I want to do obstacle avoidance using myRIO, USB Camera (in the future myRIO will be placed on a robot). I found some alghoritms: 

http://www.roborealm.com/tutorial/Obstacle_Avoidance/slide010.php  and I want to do the first one, Edge Based Technique, I succeeded to do Canny Edged Detection, but I am stuck at Filled From Below because I don't know how to do this in LabVIEW. Can somebody help me?

[Hatef.fouladi]

there is no Filled From Below for edge directly but you can create Filled From Below algorithm in labview by your self . because it use Erode and labview have erode function

[DC20]

o.k., then can you help me with some informations about this? because I never done something like this before

[Hatef.fouladi]

OK
there is many method for make edge image
every years many new method introduce for this reason
first find what algorithm do on your image

[DC20]

I want an alghoritm example which does this. Can somebody help me? i am trying to fill from above the image like in description

[Kelly_B]

Hi DC20,

Are you using the NI Vision Assistant or the IMAQ VIs in LabVIEW?  If you aren't already, I recommend trying the Vision Assistant because you can apply functions and operations to an image and see the results immediately, so if you are developing an algorithm you can see the results as you go.  That said, you may want to look at the Threshold function intitially, and go from there.