#include "mat.hpp"
|
| Mat ()=default |
|
| Mat (int _rows, int _cols, int _type, void *_data, size_t _step=AUTO_STEP) |
|
| Mat (Mat const &src, const Rect &roi) |
|
| Mat (Mat const &src)=default |
|
| Mat (Mat &&src)=default |
|
int | channels () const |
| Returns the number of matrix channels. More...
|
|
void | copyTo (Mat &dst) const |
| Copies the matrix to another one. More...
|
|
void | create (int _rows, int _cols, int _type) |
|
void | create (Size _size, int _type) |
|
int | depth () const |
| Returns the depth of a matrix element. More...
|
|
size_t | elemSize () const |
| Returns the matrix element size in bytes. More...
|
|
bool | empty () const |
| Returns true if the array has no elements. More...
|
|
Mat | operator() (const Rect &roi) const |
|
Mat & | operator= (Mat const &src)=default |
|
Mat & | operator= (Mat &&src)=default |
|
Mat & | operator= (const Scalar &s) |
| Sets all or some of the array elements to the specified value. More...
|
|
uchar * | ptr (int row, int col=0) |
| Returns a pointer to the specified matrix row. More...
|
|
const uchar * | ptr (int row, int col=0) const |
|
size_t | total () const |
| Returns the total number of array elements. More...
|
|
int | type () const |
| Returns the type of a matrix element. More...
|
|
§ Mat() [1/5]
cv::gapi::own::Mat::Mat |
( |
| ) |
|
|
default |
§ Mat() [2/5]
cv::gapi::own::Mat::Mat |
( |
int |
_rows, |
|
|
int |
_cols, |
|
|
int |
_type, |
|
|
void * |
_data, |
|
|
size_t |
_step = AUTO_STEP |
|
) |
| |
|
inline |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
-
_rows | Number of rows in a 2D array. |
_cols | Number of columns in a 2D array. |
_type | Array type. Use CV_8UC1, ..., CV_64FC4 to create 1-4 channel matrices, or CV_8UC(n), ..., CV_64FC(n) to create multi-channel (up to CV_CN_MAX channels) matrices. |
_data | Pointer to the user data. Matrix constructors that take data and step parameters do not allocate matrix data. Instead, they just initialize the matrix header that points to the specified data, which means that no data is copied. This operation is very efficient and can be used to process external data using OpenCV functions. The external data is not automatically deallocated, so you should take care of it. |
_step | Number of bytes each matrix row occupies. The value should include the padding bytes at the end of each row, if any. If the parameter is missing (set to AUTO_STEP ), no padding is assumed and the actual step is calculated as cols*elemSize(). See Mat::elemSize. |
§ Mat() [3/5]
cv::gapi::own::Mat::Mat |
( |
Mat const & |
src, |
|
|
const Rect & |
roi |
|
) |
| |
|
inline |
§ Mat() [4/5]
cv::gapi::own::Mat::Mat |
( |
Mat const & |
src | ) |
|
|
default |
§ Mat() [5/5]
cv::gapi::own::Mat::Mat |
( |
Mat && |
src | ) |
|
|
default |
§ channels()
int cv::gapi::own::Mat::channels |
( |
| ) |
const |
|
inline |
Returns the number of matrix channels.
The method returns the number of matrix channels.
§ copyTo()
void cv::gapi::own::Mat::copyTo |
( |
Mat & |
dst | ) |
const |
|
inline |
Copies the matrix to another one.
The method copies the matrix data to another matrix. Before copying the data, the method invokes :
m.create(this->size(), this->
type());
so that the destination matrix is reallocated if needed. While m.copyTo(m); works flawlessly, the function does not handle the case of a partial overlap between the source and the destination matrices.
§ create() [1/2]
void cv::gapi::own::Mat::create |
( |
int |
_rows, |
|
|
int |
_cols, |
|
|
int |
_type |
|
) |
| |
|
inline |
- Parameters
-
_rows | New number of rows. |
_cols | New number of columns. |
_type | New matrix type. |
§ create() [2/2]
void cv::gapi::own::Mat::create |
( |
Size |
_size, |
|
|
int |
_type |
|
) |
| |
|
inline |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
-
_size | Alternative new matrix size specification: Size(cols, rows) |
_type | New matrix type. |
§ depth()
int cv::gapi::own::Mat::depth |
( |
| ) |
const |
|
inline |
Returns the depth of a matrix element.
The method returns the identifier of the matrix element depth (the type of each individual channel). For example, for a 16-bit signed element array, the method returns CV_16S . A complete list of matrix types contains the following values:
- CV_8U - 8-bit unsigned integers ( 0..255 )
- CV_8S - 8-bit signed integers ( -128..127 )
- CV_16U - 16-bit unsigned integers ( 0..65535 )
- CV_16S - 16-bit signed integers ( -32768..32767 )
- CV_32S - 32-bit signed integers ( -2147483648..2147483647 )
- CV_32F - 32-bit floating-point numbers ( -FLT_MAX..FLT_MAX, INF, NAN )
- CV_64F - 64-bit floating-point numbers ( -DBL_MAX..DBL_MAX, INF, NAN )
§ elemSize()
size_t cv::gapi::own::Mat::elemSize |
( |
| ) |
const |
|
inline |
Returns the matrix element size in bytes.
The method returns the matrix element size in bytes. For example, if the matrix type is CV_16SC3 , the method returns 3*sizeof(short) or 6.
§ empty()
bool cv::gapi::own::Mat::empty |
( |
| ) |
const |
Returns true if the array has no elements.
The method returns true if Mat::total() is 0 or if Mat::data is NULL. Because of pop_back() and resize() methods M.total() == 0
does not imply that M.data == NULL
.
§ operator()()
Mat cv::gapi::own::Mat::operator() |
( |
const Rect & |
roi | ) |
const |
|
inline |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
-
roi | Extracted submatrix specified as a rectangle. |
§ operator=() [1/3]
Mat& cv::gapi::own::Mat::operator= |
( |
Mat const & |
src | ) |
|
|
default |
§ operator=() [2/3]
Mat& cv::gapi::own::Mat::operator= |
( |
Mat && |
src | ) |
|
|
default |
§ operator=() [3/3]
Mat& cv::gapi::own::Mat::operator= |
( |
const Scalar & |
s | ) |
|
|
inline |
Sets all or some of the array elements to the specified value.
- Parameters
-
s | Assigned scalar converted to the actual array type. |
§ ptr() [1/2]
uchar* cv::gapi::own::Mat::ptr |
( |
int |
row, |
|
|
int |
col = 0 |
|
) |
| |
|
inline |
Returns a pointer to the specified matrix row.
The methods return uchar*
or typed pointer to the specified matrix row. See the sample in Mat::isContinuous to know how to use these methods.
- Parameters
-
row | Index along the dimension 0 |
col | Index along the dimension 1 |
§ ptr() [2/2]
const uchar* cv::gapi::own::Mat::ptr |
( |
int |
row, |
|
|
int |
col = 0 |
|
) |
| const |
|
inline |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
§ total()
size_t cv::gapi::own::Mat::total |
( |
| ) |
const |
|
inline |
Returns the total number of array elements.
The method returns the number of array elements (a number of pixels if the array represents an image).
§ type()
int cv::gapi::own::Mat::type |
( |
| ) |
const |
|
inline |
Returns the type of a matrix element.
The method returns a matrix element type. This is an identifier compatible with the CvMat type system, like CV_16SC3 or 16-bit signed 3-channel array, and so on.
The documentation for this class was generated from the following file:
- gapi/include/opencv2/gapi/own/mat.hpp