/// <summary>
/// Creates instance from raw pointer T*
/// </summary>
/// <param name="ptr"></param>
internal static new Feature2D FromRawPtr(IntPtr ptr)
{
if (ptr == IntPtr.Zero)
throw new OpenCvSharpException("Invalid Feature2D pointer");
var detector = new Feature2D
{
detectorPtr = null,
ptr = ptr
};
return detector;
}
/// <summary>
/// Creates instance from cv::Ptr<T> .
/// ptr is disposed when the wrapper disposes.
/// </summary>
/// <param name="ptr"></param>
internal static new Feature2D FromPtr(IntPtr ptr)
{
if (ptr == IntPtr.Zero)
throw new OpenCvSharpException("Invalid cv::Ptr<Feature2D> pointer");
var ptrObj = new Ptr<Feature2D>(ptr);
var detector = new Feature2D
{
detectorPtr = ptrObj,
ptr = ptrObj.Obj
};
return detector;
}
/// <summary>
/// The constructor.
/// </summary>
/// <param name="dextractor">Descriptor extractor that is used to compute descriptors for an input image and its keypoints.</param>
/// <param name="dmatcher">Descriptor matcher that is used to find the nearest word of the trained vocabulary for each keypoint descriptor of the image.</param>
public BOWImgDescriptorExtractor(Feature2D dextractor, DescriptorMatcher dmatcher)
{
if (dextractor == null)
{
throw new ArgumentNullException(nameof(dextractor));
}
if (dmatcher == null)
{
throw new ArgumentNullException(nameof(dmatcher));
}
ptr = NativeMethods.features2d_BOWImgDescriptorExtractor_new1(
dextractor.PtrObj, dmatcher.PtrObj);
}
/// <summary>
/// Creates instance from raw pointer T*
/// </summary>
/// <param name="ptr"></param>
internal static new Feature2D FromRawPtr(IntPtr ptr)
{
if (ptr == IntPtr.Zero)
{
throw new OpenCvSharpException("Invalid Feature2D pointer");
}
var detector = new Feature2D
{
detectorPtr = null,
ptr = ptr
};
return(detector);
}
/// <summary>
/// Creates instance from cv::Ptr<T> .
/// ptr is disposed when the wrapper disposes.
/// </summary>
/// <param name="ptr"></param>
internal static new Feature2D FromPtr(IntPtr ptr)
{
if (ptr == IntPtr.Zero)
{
throw new OpenCvSharpException("Invalid cv::Ptr<Feature2D> pointer");
}
var ptrObj = new Ptr <Feature2D>(ptr);
var detector = new Feature2D
{
detectorPtr = ptrObj,
ptr = ptrObj.Obj
};
return(detector);
}
/// <summary>
/// Create feature detector by detector name.
/// </summary>
/// <param name="detectorType"></param>
/// <returns></returns>
public static new Feature2D Create(string detectorType)
{
if (String.IsNullOrEmpty(detectorType))
{
throw new ArgumentNullException("detectorType");
}
// gets cv::Ptr<Feature2D>
IntPtr ptr = NativeMethods.features2d_Feature2D_create(detectorType);
try
{
Feature2D detector = FromPtr(ptr);
return(detector);
}
catch (OpenCvSharpException)
{
throw new OpenCvSharpException("Detector name '{0}' is not valid.", detectorType);
}
}
