/// <summary>
/// Detect image features from the given image
/// </summary>
/// <param name="image">The image to detect features from</param>
/// <param name="mask">The optional mask, can be null if not needed</param>
/// <returns>The Image features detected from the given image</returns>
public ImageFeature <TDescriptor>[] DetectFeatures(Image <Gray, Byte> image, Image <Gray, byte> mask)
{
using (VectorOfKeyPoint pts = new VectorOfKeyPoint())
using (Matrix <TDescriptor> descVec = DetectAndCompute(image, mask, pts))
{
return(ImageFeature <TDescriptor> .ConvertFromRaw(pts, descVec));
}
}
/// <summary>
/// Detect image features from the given image
/// </summary>
/// <param name="image">The image to detect features from</param>
/// <param name="mask">The optional mask, can be null if not needed</param>
/// <returns>The Image features detected from the given image</returns>
public ImageFeature <byte>[] DetectFeatures(Image <Gray, Byte> image, Image <Gray, byte> mask)
{
using (VectorOfKeyPoint pts = this.DetectKeyPointsRaw(image, mask))
using (Matrix <byte> descVec = ComputeDescriptorsRaw(image, mask, pts))
{
return(ImageFeature <byte> .ConvertFromRaw(pts, descVec));
}
}
/// <summary>
/// Compute the descriptor given the image and the point location
/// </summary>
/// <param name="extractor">The descriptor extractor</param>
/// <param name="image">The image where the descriptor will be computed from</param>
/// <param name="mask">The optional mask, can be null if not needed</param>
/// <param name="keyPoints">The keypoint where the descriptor will be computed from</param>
/// <returns>The descriptors founded on the keypoint location</returns>
public static ImageFeature <TDepth>[] ComputeDescriptors <TDepth>(this IDescriptorExtractor <TDepth> extractor, Image <Gray, Byte> image, Image <Gray, byte> mask, MKeyPoint[] keyPoints)
where TDepth : struct
{
if (keyPoints.Length == 0)
{
return(new ImageFeature <TDepth> [0]);
}
using (VectorOfKeyPoint kpts = new VectorOfKeyPoint())
{
kpts.Push(keyPoints);
using (Matrix <TDepth> descriptor = extractor.ComputeDescriptorsRaw(image, mask, kpts))
{
return(ImageFeature <TDepth> .ConvertFromRaw(kpts, descriptor));
}
}
}
