C# (CSharp) OpenCvSharp Feature2D Examples

Example #1

File: BOWImgDescriptorExtractor.cs Project: shimat/opencvsharp

 /// <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);
 }

Example #2

File: Feature2D.cs Project: JiphuTzu/opencvsharp

 /// <summary>
 /// Creates instance from cv::Ptr&lt;T&gt; .
 /// ptr is disposed when the wrapper disposes. 
 /// </summary>
 /// <param name="ptr"></param>
 internal static 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
     {
         ptrObj = ptrObj,
         ptr = ptrObj.Get()
     };
     return detector;
 }

Example #3

File: BOWImgDescriptorExtractor.cs Project: zagyar/opencvsharp

 /// <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);
 }

Example #4

File: BOWImgDescriptorExtractor.cs Project: zfq308/opencvsharp

 /// <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_RawPtr(dextractor.CvPtr, dmatcher.CvPtr);
     GC.KeepAlive(dextractor);
     GC.KeepAlive(dmatcher);
 }

Example #5

        /// <summary>
        /// Creates instance from cv::Ptr&lt;T&gt; .
        /// ptr is disposed when the wrapper disposes.
        /// </summary>
        /// <param name="ptr"></param>
        internal static 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
            {
                ptrObj = ptrObj,
                ptr    = ptrObj.Get()
            };

            return(detector);
        }