opencv

It would be great to have an implementation of connected components & flood fill in CVTools.

It may allow blob tracking directly in QC.

I thought I would start a new post regarding the user bonoitlahoz's recent post using openCV to determine points to attach movie clips, here: http://kineme.net/forum/Discussion/DevelopingCompositions/CVToolsDetecti...

I am using benoitlahoz's comp as a starting point to approach one of those impressive tracking scenarios I see in zuga's work and many others -- I'd like to attach iterations of an image to the detected edge, then have the images behave as if attached to the edge as it grows, shrinks, travels, etc. I included my test movie with this comp. Any advice is appreciated.

Dear All,

It is been a while and so good to be back to see what is new on this amazing group and their incredible inventions.

I am new (I mean really new to OpenCV and just installed new QC on leopard. I could see the points tracked with my video image and so forth but really appreciate if someone tell me what else I could do to these tracked points. Can I see their x,y value so I cam match some other images/3D model to it? just a dump question maybe, please

I am running these compositions fine on my computer now:

http://kineme.net/Discussion/DevelopingCompositions/OpenCVtracker

Teach me masters, please, give me some hint, I will try to learn, as I may have some time this month, thanks a lot

muqeem

Hi there,

I’m an industrial design student (definitely not a programmer) looking at making a learning tool -and I really need some help!

I want a user to be able to construct a basic 2d shape out of popsicle sticks and an overhead camera to recognize the shape and play an audio track which correlates.... ie, the user makes a triangle out of sticks and the computer plays “well done, it’s a triangle”. So a basic requirement, but quite difficult to pull off.

I think CV is the best solution, as I want the kids to be able to construct basic shapes by themselves (and not on a grid), and the linear construction elements (popsicle sticks) should be disposable - so sensors attached to them aren’t really appropriate) That said, IR leds would be ok

I’ve been considering openCV with a database of comparative images of shapes (haar learning) but it’s beyond my knowledge. I do however have some experience with quartz composer, so that would be my first choice.

Any suggestions for setting up what is basically computer vision pattern recognition?

cheers, I really appreciate your time,

Jeremy

Hi guys,

I'm having a problem when i'm running a QC composition. I'm using the CVTools.plugin and placed it in the correct QC Patches folder. When is run my QC composition is giving me errors like described underneath. The plugin is working cause it's making use of some nodes within the plugin like OpenCVBGR2Gray patch. I'm surfing the web for a few hours now and I can't seem to fix it. Has anyone got an idea or a post for me with a solution. I'd tried running QC in 32-bit mode already an moving around the plugins.

these are my specs. MacBook MacBook5,2 Intel Core 2 Duo 2 GHz Mem: 2 GB Currently I'm running SL 10.6.2

these are the errors

(null) : Patch with name "OpenCVFindCornerSubPix" is missing

Macro Patch Cannot create node of class "OpenCVFindCornerSubPix" and identifier "(null)"

(null) : Patch with name "StructureMaker:KinemeNamedStructureMaker" is missing

Macro Patch Cannot create node of class "StructureMaker" and identifier "KinemeNamedStructureMaker"

(null) : Patch with name "StructureMaker:KinemeNamedStructureMaker" is missing

Macro Patch Cannot create node of class "StructureMaker" and identifier "KinemeNamedStructureMaker"

Macro Patch Cannot create connection from ["outputPoints" @ "OpenCVFindCornerSubPix_1"] to ["source_1" @ "Multiplexer_1"]

Macro Patch Cannot create connection from ["outputStructure" @ "StructureMaker_KinemeNamedStructureMaker_1"] to ["Input 1" @ "StructureMaker_KinemeNamedStructureMaker_2"]

Macro Patch Cannot create connection from ["outputPoints" @ "OpenCVGoodFeaturesToTrack_1"] to ["inputPoints" @ "OpenCVFindCornerSubPix_1"]

Macro Patch Cannot create connection from ["outputX" @ "Mouse_1"] to ["Input 1" @ "StructureMaker_KinemeNamedStructureMaker_1"]

Macro Patch Cannot create connection from ["outputButton2" @ "Mouse_1"] to ["inputFindSignal" @ "OpenCVFindCornerSubPix_1"]

Macro Patch Cannot create connection from ["outputImage" @ "OpenCVBGR2Gray_1"] to ["inputImage" @ "OpenCVFindCornerSubPix_1"]

Macro Patch Cannot create connection from ["outputStructure" @ "StructureMaker_KinemeNamedStructureMaker_2"] to ["source_0" @ "Multiplexer_1"]

Macro Patch Cannot create connection from ["outputY" @ "Mouse_1"] to ["Input 2" @ "StructureMaker_KinemeNamedStructureMaker_1"]

(null) State restoration failed on