Feature2DAsyncExtensionComputeAsync Method |
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Compute the descriptors on the image from the given keypoint locations.
Namespace: Emgu.CV.CudaAssembly: Emgu.CV.World (in Emgu.CV.World.dll) Version: 3.2.0.2682 (3.2.0.2682)
Syntaxpublic static void ComputeAsync(
this IFeature2DAsync feature2DAsync,
IInputArray image,
IOutputArray keypoints,
IOutputArray descriptors,
Stream stream = null
)
<ExtensionAttribute>
Public Shared Sub ComputeAsync (
feature2DAsync As IFeature2DAsync,
image As IInputArray,
keypoints As IOutputArray,
descriptors As IOutputArray,
Optional stream As Stream = Nothing
)
public:
[ExtensionAttribute]
static void ComputeAsync(
IFeature2DAsync^ feature2DAsync,
IInputArray^ image,
IOutputArray^ keypoints,
IOutputArray^ descriptors,
Stream^ stream = nullptr
)
[<ExtensionAttribute>]
static member ComputeAsync :
feature2DAsync : IFeature2DAsync *
image : IInputArray *
keypoints : IOutputArray *
descriptors : IOutputArray *
?stream : Stream
(* Defaults:
let _stream = defaultArg stream null
*)
-> unit
Parameters
- feature2DAsync
- Type: Emgu.CV.CudaIFeature2DAsync
The Feature2DAsync object - image
- Type: Emgu.CVIInputArray
The image to compute descriptors from - keypoints
- Type: Emgu.CVIOutputArray
The keypoints where the descriptor computation is perfromed - descriptors
- Type: Emgu.CVIOutputArray
The descriptors from the given keypoints - stream (Optional)
- Type: Emgu.CV.CudaStream
Use a Stream to call the function asynchronously (non-blocking) or null to call the function synchronously (blocking).
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
IFeature2DAsync. When you use instance method syntax to call this method, omit the first parameter. For more information, see
Extension Methods (Visual Basic) or
Extension Methods (C# Programming Guide).
See Also