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|
Operations on Matrices
======================
.. highlight:: cpp
.. index:: gpu::transpose
gpu::transpose
------------------
.. ocv:function:: void gpu::transpose(const GpuMat& src, GpuMat& dst)
Transposes a matrix.
:param src: Source matrix. 1-, 4-, 8-byte element sizes are supported for now.
:param dst: Destination matrix.
.. seealso::
:ocv:func:`transpose`
.. index:: gpu::flip
gpu::flip
-------------
.. ocv:function:: void gpu::flip(const GpuMat& src, GpuMat& dst, int flipCode)
Flips a 2D matrix around vertical, horizontal, or both axes.
:param src: Source matrix. Only ``CV_8UC1`` and ``CV_8UC4`` matrices are supported for now.
:param dst: Destination matrix.
:param flipCode: Flip mode for the source:
* ``0`` Flips around x-axis.
* ``>0`` Flips around y-axis.
* ``<0`` Flips around both axes.
.. seealso::
:ocv:func:`flip`
.. index:: gpu::LUT
gpu::LUT
------------
.. ocv:function:: void gpu::LUT(const GpuMat& src, const Mat& lut, GpuMat& dst)
Transforms the source matrix into the destination matrix using the given look-up table: ``dst(I) = lut(src(I))``
:param src: Source matrix. ``CV_8UC1`` and ``CV_8UC3`` matrices are supported for now.
:param lut: Look-up table of 256 elements. It is a continuous ``CV_8U`` matrix.
:param dst: Destination matrix with the same depth as ``lut`` and the same number of channels as ``src``.
.. seealso::
:ocv:func:`LUT`
.. index:: gpu::merge
gpu::merge
--------------
.. ocv:function:: void gpu::merge(const GpuMat* src, size_t n, GpuMat& dst)
.. ocv:function:: void gpu::merge(const GpuMat* src, size_t n, GpuMat& dst, const Stream& stream)
.. ocv:function:: void gpu::merge(const vector<GpuMat>& src, GpuMat& dst)
.. ocv:function:: void gpu::merge(const vector<GpuMat>& src, GpuMat& dst, const Stream& stream)
Makes a multi-channel matrix out of several single-channel matrices.
:param src: Array/vector of source matrices.
:param n: Number of source matrices.
:param dst: Destination matrix.
:param stream: Stream for the asynchronous version.
.. seealso::
:ocv:func:`merge`
.. index:: gpu::split
gpu::split
--------------
.. ocv:function:: void gpu::split(const GpuMat& src, GpuMat* dst)
.. ocv:function:: void gpu::split(const GpuMat& src, GpuMat* dst, const Stream& stream)
.. ocv:function:: void gpu::split(const GpuMat& src, vector<GpuMat>& dst)
.. ocv:function:: void gpu::split(const GpuMat& src, vector<GpuMat>& dst, const Stream& stream)
Copies each plane of a multi-channel matrix into an array.
:param src: Source matrix.
:param dst: Destination array/vector of single-channel matrices.
:param stream: Stream for the asynchronous version.
.. seealso::
:ocv:func:`split`
.. index:: gpu::magnitude
gpu::magnitude
------------------
.. ocv:function:: void gpu::magnitude(const GpuMat& xy, GpuMat& magnitude)
.. ocv:function:: void gpu::magnitude(const GpuMat& x, const GpuMat& y, GpuMat& magnitude)
.. ocv:function:: void gpu::magnitude(const GpuMat& x, const GpuMat& y, GpuMat& magnitude, const Stream& stream)
Computes magnitudes of complex matrix elements.
:param xy: Source complex matrix in the interleaved format (``CV_32FC2``).
:param x: Source matrix containing real components (``CV_32FC1``).
:param y: Source matrix containing imaginary components (``CV_32FC1``).
:param magnitude: Destination matrix of float magnitudes (``CV_32FC1``).
:param stream: Stream for the asynchronous version.
.. seealso::
:ocv:func:`magnitude`
.. index:: gpu::magnitudeSqr
gpu::magnitudeSqr
---------------------
.. ocv:function:: void gpu::magnitudeSqr(const GpuMat& xy, GpuMat& magnitude)
.. ocv:function:: void gpu::magnitudeSqr(const GpuMat& x, const GpuMat& y, GpuMat& magnitude)
.. ocv:function:: void gpu::magnitudeSqr(const GpuMat& x, const GpuMat& y, GpuMat& magnitude, const Stream& stream)
Computes squared magnitudes of complex matrix elements.
:param xy: Source complex matrix in the interleaved format (``CV_32FC2``).
:param x: Source matrix containing real components (``CV_32FC1``).
:param y: Source matrix containing imaginary components (``CV_32FC1``).
:param magnitude: Destination matrix of float magnitude squares (``CV_32FC1``).
:param stream: Stream for the asynchronous version.
.. index:: gpu::phase
gpu::phase
--------------
.. ocv:function:: void gpu::phase(const GpuMat& x, const GpuMat& y, GpuMat& angle, bool angleInDegrees=false)
.. ocv:function:: void gpu::phase(const GpuMat& x, const GpuMat& y, GpuMat& angle, bool angleInDegrees, const Stream& stream)
Computes polar angles of complex matrix elements.
:param x: Source matrix containing real components (``CV_32FC1``).
:param y: Source matrix containing imaginary components (``CV_32FC1``).
:param angle: Destionation matrix of angles (``CV_32FC1``).
:param angleInDegress: Flag for angles that must be evaluated in degress.
:param stream: Stream for the asynchronous version.
.. seealso::
:ocv:func:`phase`
.. index:: gpu::cartToPolar
gpu::cartToPolar
--------------------
.. ocv:function:: void gpu::cartToPolar(const GpuMat& x, const GpuMat& y, GpuMat& magnitude, GpuMat& angle, bool angleInDegrees=false)
.. ocv:function:: void gpu::cartToPolar(const GpuMat& x, const GpuMat& y, GpuMat& magnitude, GpuMat& angle, bool angleInDegrees, const Stream& stream)
Converts Cartesian coordinates into polar.
:param x: Source matrix containing real components (``CV_32FC1``).
:param y: Source matrix containing imaginary components (``CV_32FC1``).
:param magnitude: Destination matrix of float magnitudes (``CV_32FC1``).
:param angle: Destionation matrix of angles (``CV_32FC1``).
:param angleInDegress: Flag for angles that must be evaluated in degress.
:param stream: Stream for the asynchronous version.
.. seealso::
:ocv:func:`cartToPolar`
.. index:: gpu::polarToCart
gpu::polarToCart
--------------------
.. ocv:function:: void gpu::polarToCart(const GpuMat& magnitude, const GpuMat& angle, GpuMat& x, GpuMat& y, bool angleInDegrees=false)
.. ocv:function:: void gpu::polarToCart(const GpuMat& magnitude, const GpuMat& angle, GpuMat& x, GpuMat& y, bool angleInDegrees, const Stream& stream)
Converts polar coordinates into Cartesian.
:param magnitude: Source matrix containing magnitudes (``CV_32FC1``).
:param angle: Source matrix containing angles (``CV_32FC1``).
:param x: Destination matrix of real components (``CV_32FC1``).
:param y: Destination matrix of imaginary components (``CV_32FC1``).
:param angleInDegress: Flag that indicates angles in degress.
:param stream: Stream for the asynchronous version.
.. seealso::
:ocv:func:`polarToCart`
|
