Windows 8 Metro apps

asked 2012-07-23 12:21:37 -0600

Andrew
26 ●1 ●1 ●3

updated 2012-07-24 06:22:05 -0600

Andrey Pavlenko
1808 ●3 ●18 ●39

Hi,

I am doing some metro app development for school using Windows 8 tablets. I would like to use OpenCV for image processing, particularly with augmented reality, but in Metro apps you can't run native code. So wrappers would not work. You can use C++ to write apps/libraries, but it can't have any native library dependencies.

So will OpenCV be ported or made available for Metro apps? Is there a way to get the existing code to work without any major rewrites?

Thanks, Andrew

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answered 2012-07-24 06:21:46 -0600

Andrey Pavlenko
1808 ●3 ●18 ●39

OpenCV team has Win8 support in plans, but no particular dates are known for now.

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well +1 for a user who'd like to see it :) If it was ported it would also support windows phone 8, which doesn't have much of a market share. but I could see Win 8 tablets becoming popular. we have a couple samsung series 7s with win 8 and so far they seem to have a lot of potential.

Andrew ( 2012-07-24 22:32:33 -0600 )edit

Any updates?

makhand ( 2012-12-08 21:03:08 -0600 )edit

Any Updates? We are waiting for the release

steve ( 2013-03-21 08:56:42 -0600 )edit

Any Updates ?

Solfu ( 2013-07-31 08:00:05 -0600 )edit

Any updates, and for windows phone 8 also

Sakher ( 2014-03-30 09:29:45 -0600 )edit

OpenCV has WinRT support, no plans for Win Phone 8 for today.

Andrey Pavlenko ( 2014-03-31 11:10:19 -0600 )edit

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answered 2013-01-02 19:23:03 -0600

rasharm_msft
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I have posted about this in the below mentioned stackoverflow post:

http://stackoverflow.com/questions/14065370/using-opencv-in-a-windows-8-store-app-with-visual-c-2012

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answered 2012-08-17 20:49:31 -0600

creativefisher
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See this demo. He actually uses OpenCV libraries for a Windows 8 app:

http://channel9.msdn.com/Events/TechEd/NorthAmerica/2012/DEV322

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He shows that he created an extension sdk based on OpenCV, but he created himself and doesn't share how he did that. Metro can run native code, so using OpenCV is possible, but it looks like the library would need code changed / revision

Andrew ( 2012-08-18 14:54:15 -0600 )edit

that's what I want! really want to know how he did this!

gogoqaz ( 2012-12-13 06:14:53 -0600 )edit

see the below mentioned post: http://stackoverflow.com/questions/14065370/using-opencv-in-a-windows-8-store-app-with-visual-c-2012

rasharm_msft ( 2013-01-02 19:23:30 -0600 )edit

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answered 2012-11-23 01:50:16 -0600

Yan Cheng Cheok
11 ●4

updated 2012-11-23 01:51:25 -0600

Hi, we manage to make OpenCV face detection run on Metro app. And yes, you are right, there are some tweaks needed. So far, we only manage to make it runs on x86 and x64 platforms, but not ARM.

http://answers.opencv.org/question/4431/plan-to-make-opencv-available-on-windows-8-rt-arm/

Since this is a closed source project, I cannot to share the source code with you. However, I am willing to share the knowledge with you. If you can have a more specific question, then I may provide a more specific answer. :)

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hey Yan, Could I ask your help for how to write an WinRT component using openCV? Now I create a WinRT component and javascript project, I want to let the javescript project can reference it. after I add some opencv lib to component and export opencv api to javascript. and compiler it. When I use javascript try to initialize a class object which is from opencv component, the program got an exception " The specified module could not be found!" why? Did I miss something?. ps: the opencv version is 2.4.9 , and I can run it successfully on vs 2012 desktop. Thanks!!

gogoqaz ( 2012-12-13 06:03:51 -0600 )edit

My experience is using WinRT C++. I use C# too for UI layer. But, C# just talk to my WinRT C++. It never touch the OpenCV part. Here are some of the details : http://stackoverflow.com/questions/12907538/how-to-get-feedback-from-mediacapture-api-in-windows-8 But, we never use JavaScript. We thought that is very risky :) But, from my experience, using OpenCV in Windows 8 is a no-joy-task. Too much restrictions being placed by Windows 8.

Yan Cheng Cheok ( 2013-01-11 02:17:02 -0600 )edit

Not a better option to suggest. Minutes delay between the process. Hate this.

niths ( 2013-03-21 08:47:16 -0600 )edit

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