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Viewing changes to extern/libmv/libmv/tracking/lmicklt_region_tracker.cc

  • Committer: Package Import Robot
  • Author(s): Matteo F. Vescovi
  • Date: 2012-04-28 12:11:12 UTC
  • mto: (14.1.6 experimental) (1.5.1)
  • mto: This revision was merged to the branch mainline in revision 34.
  • Revision ID: package-import@ubuntu.com-20120428121112-2zi0vp8b6vejda8i
Tags: upstream-2.63
Import upstream version 2.63

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extern/libmv/libmv/tracking/lmicklt_region_tracker.cc
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  return true;
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}
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// Sample a region centered at x,y in image with size extending by half_width
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// from x,y. Channels specifies the number of channels to sample from.
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static void SamplePattern(const FloatImage &image,
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                   double x, double y,
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                   int half_width,
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                   int channels,
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                   FloatImage *sampled) {
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  sampled->Resize(2 * half_width + 1, 2 * half_width + 1, channels);
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  for (int r = -half_width; r <= half_width; ++r) {
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    for (int c = -half_width; c <= half_width; ++c) {
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      for (int i = 0; i < channels; ++i) {
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        (*sampled)(r + half_width, c + half_width, i) =
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            SampleLinear(image, y + r, x + c, i);
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      }
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    }
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  }
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}
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// Estimate "reasonable" error by computing autocorrelation for a small shift.
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static double EstimateReasonableError(const FloatImage &image,
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                               double x, double y,