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Class implementing the AKAZE keypoint detector and descriptor extractor
As described in [ANB13].
Note: AKAZE descriptors can only be used with KAZE or AKAZE keypoints. This class is thread-safe.
Note: When you need descriptors use cv.AKAZE.detectAndCompute, which provides better performance. When using cv.AKAZE.detect followed by cv.AKAZE.compute scale space pyramid is computed twice.
[ANB13]:
"Fast Explicit Diffusion for Accelerated Features in Nonlinear Scale Spaces". Pablo F. Alcantarilla, Jesus Nuevo and Adrien Bartoli. In British Machine Vision Conference (BMVC), Bristol, UK, Sept 2013.
| Superclasses | handle |
| Sealed | false |
| Construct on load | false |
| AKAZE | The AKAZE constructor |
| DescriptorChannels | Number of channels in the descriptor (1, 2, 3). |
| DescriptorSize | Size of the descriptor in bits. |
| DescriptorType | Type of the extracted descriptor. |
| Diffusivity | type. |
| NOctaveLayers | Default number of sublevels per scale level. |
| NOctaves | Maximum octave evolution of the image. |
| Threshold | Detector response threshold to accept point. |
| id | Object ID |
| addlistener | Add listener for event. | |
| clear | Clears the algorithm state | |
| compute | Computes the descriptors for a set of keypoints detected in an image or image set | |
| defaultNorm | Returns the default norm type | |
| delete | Destructor | |
| descriptorSize | Returns the descriptor size in floats/bytes | |
| descriptorType | Returns the descriptor type | |
| detect | Detects keypoints in an image or image set | |
| detectAndCompute | Detects keypoints and computes their descriptors | |
| empty | Checks if detector object is empty | |
| eq | == (EQ) Test handle equality. | |
| findobj | Find objects matching specified conditions. | |
| findprop | Find property of MATLAB handle object. | |
| ge | >= (GE) Greater than or equal relation for handles. | |
| getDefaultName | Returns the algorithm string identifier | |
| gt | > (GT) Greater than relation for handles. | |
| Sealed | isvalid | Test handle validity. |
| le | <= (LE) Less than or equal relation for handles. | |
| listener | Add listener for event without binding the listener to the source object. | |
| load | Loads algorithm from a file or a string | |
| lt | < (LT) Less than relation for handles. | |
| ne | ~= (NE) Not equal relation for handles. | |
| notify | Notify listeners of event. | |
| save | Saves the algorithm parameters to a file | |
| typeid | Name of the C++ type (RTTI) |
| ObjectBeingDestroyed | Notifies listeners that a particular object has been destroyed. |