Class implementing DAISY descriptor, described in [153].
More...
#include "xfeatures2d.hpp"
|
virtual void | compute (InputArray image, std::vector< KeyPoint > &keypoints, OutputArray descriptors)=0 |
|
virtual void | compute (InputArrayOfArrays images, std::vector< std::vector< KeyPoint > > &keypoints, OutputArrayOfArrays descriptors) |
|
virtual void | compute (InputArray image, Rect roi, OutputArray descriptors)=0 |
|
virtual void | compute (InputArray image, OutputArray descriptors)=0 |
|
virtual void | GetDescriptor (double y, double x, int orientation, float *descriptor) const =0 |
|
virtual bool | GetDescriptor (double y, double x, int orientation, float *descriptor, double *H) const =0 |
|
virtual void | GetUnnormalizedDescriptor (double y, double x, int orientation, float *descriptor) const =0 |
|
virtual bool | GetUnnormalizedDescriptor (double y, double x, int orientation, float *descriptor, double *H) const =0 |
|
virtual | ~Feature2D () |
|
virtual int | defaultNorm () const |
|
virtual int | descriptorSize () const |
|
virtual int | descriptorType () const |
|
virtual void | detect (InputArray image, std::vector< KeyPoint > &keypoints, InputArray mask=noArray()) |
| Detects keypoints in an image (first variant) or image set (second variant). More...
|
|
virtual void | detect (InputArrayOfArrays images, std::vector< std::vector< KeyPoint > > &keypoints, InputArrayOfArrays masks=noArray()) |
|
virtual void | detectAndCompute (InputArray image, InputArray mask, std::vector< KeyPoint > &keypoints, OutputArray descriptors, bool useProvidedKeypoints=false) |
|
virtual bool | empty () const |
| Return true if detector object is empty. More...
|
|
void | read (const String &fileName) |
|
virtual void | read (const FileNode &) |
| Reads algorithm parameters from a file storage. More...
|
|
void | write (const String &fileName) const |
|
virtual void | write (FileStorage &) const |
| Stores algorithm parameters in a file storage. More...
|
|
| Algorithm () |
|
virtual | ~Algorithm () |
|
virtual void | clear () |
| Clears the algorithm state. More...
|
|
virtual String | getDefaultName () const |
|
virtual void | save (const String &filename) const |
|
Class implementing DAISY descriptor, described in [153].
- Parameters
-
radius | radius of the descriptor at the initial scale |
q_radius | amount of radial range division quantity |
q_theta | amount of angular range division quantity |
q_hist | amount of gradient orientations range division quantity |
norm | choose descriptors normalization type, where DAISY::NRM_NONE will not do any normalization (default), DAISY::NRM_PARTIAL mean that histograms are normalized independently for L2 norm equal to 1.0, DAISY::NRM_FULL mean that descriptors are normalized for L2 norm equal to 1.0, DAISY::NRM_SIFT mean that descriptors are normalized for L2 norm equal to 1.0 but no individual one is bigger than 0.154 as in SIFT |
H | optional 3x3 homography matrix used to warp the grid of daisy but sampling keypoints remains unwarped on image |
interpolation | switch to disable interpolation for speed improvement at minor quality loss |
use_orientation | sample patterns using keypoints orientation, disabled by default. |
§ anonymous enum
Enumerator |
---|
NRM_NONE | |
NRM_PARTIAL | |
NRM_FULL | |
NRM_SIFT | |
§ compute() [1/4]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
-
image | image to extract descriptors |
keypoints | of interest within image |
descriptors | resulted descriptors array |
Reimplemented from cv::Feature2D.
§ compute() [2/4]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
-
images | Image set. |
keypoints | Input collection of keypoints. Keypoints for which a descriptor cannot be computed are removed. Sometimes new keypoints can be added, for example: SIFT duplicates keypoint with several dominant orientations (for each orientation). |
descriptors | Computed descriptors. In the second variant of the method descriptors[i] are descriptors computed for a keypoints[i]. Row j is the keypoints (or keypoints[i]) is the descriptor for keypoint j-th keypoint. |
Reimplemented from cv::Feature2D.
§ compute() [3/4]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
-
image | image to extract descriptors |
roi | region of interest within image |
descriptors | resulted descriptors array for roi image pixels |
§ compute() [4/4]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
-
image | image to extract descriptors |
descriptors | resulted descriptors array for all image pixels |
§ create()
static Ptr<DAISY> cv::xfeatures2d::DAISY::create |
( |
float |
radius = 15 , |
|
|
int |
q_radius = 3 , |
|
|
int |
q_theta = 8 , |
|
|
int |
q_hist = 8 , |
|
|
int |
norm = DAISY::NRM_NONE , |
|
|
InputArray |
H = noArray() , |
|
|
bool |
interpolation = true , |
|
|
bool |
use_orientation = false |
|
) |
| |
|
static |
§ GetDescriptor() [1/2]
virtual void cv::xfeatures2d::DAISY::GetDescriptor |
( |
double |
y, |
|
|
double |
x, |
|
|
int |
orientation, |
|
|
float * |
descriptor |
|
) |
| const |
|
pure virtual |
- Parameters
-
y | position y on image |
x | position x on image |
orientation | orientation on image (0->360) |
descriptor | supplied array for descriptor storage |
§ GetDescriptor() [2/2]
virtual bool cv::xfeatures2d::DAISY::GetDescriptor |
( |
double |
y, |
|
|
double |
x, |
|
|
int |
orientation, |
|
|
float * |
descriptor, |
|
|
double * |
H |
|
) |
| const |
|
pure virtual |
- Parameters
-
y | position y on image |
x | position x on image |
orientation | orientation on image (0->360) |
descriptor | supplied array for descriptor storage |
H | homography matrix for warped grid |
§ GetUnnormalizedDescriptor() [1/2]
virtual void cv::xfeatures2d::DAISY::GetUnnormalizedDescriptor |
( |
double |
y, |
|
|
double |
x, |
|
|
int |
orientation, |
|
|
float * |
descriptor |
|
) |
| const |
|
pure virtual |
- Parameters
-
y | position y on image |
x | position x on image |
orientation | orientation on image (0->360) |
descriptor | supplied array for descriptor storage |
§ GetUnnormalizedDescriptor() [2/2]
virtual bool cv::xfeatures2d::DAISY::GetUnnormalizedDescriptor |
( |
double |
y, |
|
|
double |
x, |
|
|
int |
orientation, |
|
|
float * |
descriptor, |
|
|
double * |
H |
|
) |
| const |
|
pure virtual |
- Parameters
-
y | position y on image |
x | position x on image |
orientation | orientation on image (0->360) |
descriptor | supplied array for descriptor storage |
H | homography matrix for warped grid |
The documentation for this class was generated from the following file:
- /build/master-contrib_docs-lin64/opencv_contrib/modules/xfeatures2d/include/opencv2/xfeatures2d.hpp