The MCvSURFParams type exposes the following members.
Constructors
| Name | Description | |
|---|---|---|
 | MCvSURFParams |
Create a MCvSURFParams using the specific values
|
Methods
| Name | Description | |
|---|---|---|
| DetectKeyPoints |
Detect the SURF keypoints from the image
|
| Equals | Indicates whether this instance and a specified object are equal. (Inherited from ValueType.) |
 | Finalize | Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Returns the hash code for this instance. (Inherited from ValueType.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ToString | Returns the fully qualified type name of this instance. (Inherited from ValueType.) |
Fields
| Name | Description | |
|---|---|---|
 | extended |
0 means basic descriptors (64 elements each),
1 means extended descriptors (128 elements each)
|
| hessianThreshold |
Only features with keypoint.hessian larger than that are extracted.
good default value is ~300-500 (can depend on the average local contrast and sharpness of the image).
user can further filter out some features based on their hessian values and other characteristics
|
| nOctaveLayers |
The number of layers within each octave (4 by default)
|
| nOctaves |
The number of octaves to be used for extraction.
With each next octave the feature size is doubled (3 by default)
|
See Also
