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QTKit Capture Filtering
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QTKit Capture Filtering


  • Subject: QTKit Capture Filtering
  • From: "Bridger Maxwell" <email@hidden>
  • Date: Fri, 4 Apr 2008 01:53:30 -0600

Hello,
  I would like a little help in designing my application, before I
veer off into the wrong direction. I am making an application that
captures input from a webcam using QTKit Capture, runs the image
through a few filters (background subtraction, contrast, high pass)
then runs that image through a blob detection algorithm. I will then
show the final image (with some additional drawing on it to represent
the blobs that were detected) in a QTCaptureView. I am wondering where
I should apply the filters to the video. In the QTRecorder example the
filters are applied right before being displayed to the view in the
method:
- (CIImage *)view:(QTCaptureView *)view willDisplayImage:(CIImage *)image
Is this what I should use too? I am still reading about Core Image and
Core Video, but in the QTRecorder example Core Video is not used.
Should I not use it either? How do Core Video and QTKit Capture
relate? Your advice will help me to study in the right direction. I am
trying to rewrite the application OpenTouch in Cocoa by May in time
for science fair, so I am fairly pressed for time.

 Thank You,
   Bridger Maxwell
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