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Re: Unfathomable CIImage - Really get crazy about it
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Re: Unfathomable CIImage - Really get crazy about it


  • Subject: Re: Unfathomable CIImage - Really get crazy about it
  • From: Todd Freese <email@hidden>
  • Date: Fri, 2 Mar 2007 10:24:36 -0600

Check out:

http://developer.apple.com/cgi-bin/search.pl? q=CIVideoDemoGL&num=10&site=default_collection
(Note the version of the web is newer than the one installed with Xcode.)


It sort of does what you want. It takes a quicktime and uses core video and core image to process frames of it using openGL. You can then save the result back out to another quicktime.

Hope it helps.

Todd


On Mar 2, 2007, at 4:34 AM, Cide.Vincent.S wrote:

Hi all
I want to manipulate the CIImage which generated from some source (camera, input video, cable TV...), then I want to apply some filter on it and product some fun result.
Next step I want to get the content from my CIImage object , not only just draw it on my window.
One purpose of mine is to rip the data which presents the content out of the CIImage, and use that to draw it with opengl code, for example, to create some cube rotating effort.
I read all document all CIImage , but it only tells how to create the CIImage from other source , not about the further operation about it, as I mentioned above.


It is very simple to create a CIImage from a CGImage, but it seems impossible (I hope I was wrong) to do the reverse thing. See the document here:
http://developer.apple.com/documentation/GraphicsImaging/Reference/ QuartzCoreFramework/Classes/CIImage_Class/index.html?http:// developer.apple.com/documentation/GraphicsImaging/Reference/ QuartzCoreFramework/Classes/CIImage_Class/Reference/Reference.html


With no luck , all of it tells you how to create it, none of it tells how to create any other thing from it.


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References: 
 >Unfathomable CIImage - Really get crazy about it (From: "Cide.Vincent.S" <email@hidden>)

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