Class LATCH
LATCH Descriptor.
latch Class for computing the LATCH descriptor. If you find this code useful, please add a reference to the following paper in your work: Gil Levi and Tal Hassner, "LATCH: Learned Arrangements of Three Patch Codes", arXiv preprint arXiv:1501.03719, 15 Jan. 2015.
Note: a complete example can be found under /samples/cpp/tutorial_code/xfeatures2D/latch_match.cpp
Implements
Inherited Members
Namespace: OpenCvSharp.XFeatures2D
Assembly: OpenCvSharp.dll
Syntax
public class LATCH : Feature2D, ICvPtrHolderMethods
| Improve this Doc View SourceCreate(Int32, Boolean, Int32, Double)
Constructor
Declaration
public static LATCH Create(int bytes = 32, bool rotationInvariance = true, int halfSsdSize = 3, double sigma = 2)Parameters
| Type | Name | Description |
|---|---|---|
| System.Int32 | bytes | the size of the descriptor - can be 64, 32, 16, 8, 4, 2 or 1 |
| System.Boolean | rotationInvariance | whether or not the descriptor should compansate for orientation changes. |
| System.Int32 | halfSsdSize | the size of half of the mini-patches size. For example, if we would like to compare triplets of patches of size 7x7x then the half_ssd_size should be (7-1)/2 = 3. |
| System.Double | sigma | sigma value for GaussianBlur smoothing of the source image. Source image will be used without smoothing in case sigma value is 0. Note: the descriptor can be coupled with any keypoint extractor. The only demand is that if you use set rotationInvariance = True then you will have to use an extractor which estimates the patch orientation (in degrees). Examples for such extractors are ORB and SIFT. |
Returns
| Type | Description |
|---|---|
| LATCH |
DisposeManaged()
Releases managed resources
Declaration
protected override void DisposeManaged()Overrides
| Improve this Doc View SourceDisposeUnmanaged()
Declaration
protected override void DisposeUnmanaged()Overrides
| Improve this Doc View SourceGet()
Declaration
public override IntPtr Get()Returns
| Type | Description |
|---|---|
| IntPtr |