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366 lines
10 KiB
ReStructuredText
366 lines
10 KiB
ReStructuredText
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Per-element Operations.
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=======================
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.. highlight:: cpp
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.. index:: gpu::add
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gpu::add
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------------
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.. c:function:: void gpu::add(const GpuMat\& a, const GpuMat\& b, GpuMat\& c)
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Computes matrix-matrix or matrix-scalar sum.
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:param a: First source matrix. ``CV_8UC1`` , ``CV_8UC4`` , ``CV_32SC1`` and ``CV_32FC1`` matrices are supported for now.
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:param b: Second source matrix. Must have the same size and type as ``a`` .
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:param c: Destination matrix. Will have the same size and type as ``a`` .
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.. c:function:: void gpu::add(const GpuMat\& a, const Scalar\& sc, GpuMat\& c)
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* **a** Source matrix. ``CV_32FC1`` and ``CV_32FC2`` matrixes are supported for now.
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* **b** Source scalar to be added to the source matrix.
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* **c** Destination matrix. Will have the same size and type as ``a`` .
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See also:
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:func:`add` .
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.. index:: gpu::subtract
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gpu::subtract
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-----------------
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.. c:function:: void gpu::subtract(const GpuMat\& a, const GpuMat\& b, GpuMat\& c)
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Subtracts matrix from another matrix (or scalar from matrix).
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:param a: First source matrix. ``CV_8UC1`` , ``CV_8UC4`` , ``CV_32SC1`` and ``CV_32FC1`` matrices are supported for now.
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:param b: Second source matrix. Must have the same size and type as ``a`` .
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:param c: Destination matrix. Will have the same size and type as ``a`` .
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.. c:function:: void subtract(const GpuMat\& a, const Scalar\& sc, GpuMat\& c)
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* **a** Source matrix. ``CV_32FC1`` and ``CV_32FC2`` matrixes are supported for now.
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* **b** Scalar to be subtracted from the source matrix elements.
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* **c** Destination matrix. Will have the same size and type as ``a`` .
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See also:
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:func:`subtract` .
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.. index:: gpu::multiply
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gpu::multiply
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-----------------
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.. c:function:: void gpu::multiply(const GpuMat\& a, const GpuMat\& b, GpuMat\& c)
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Computes per-element product of two matrices (or of matrix and scalar).
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:param a: First source matrix. ``CV_8UC1`` , ``CV_8UC4`` , ``CV_32SC1`` and ``CV_32FC1`` matrices are supported for now.
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:param b: Second source matrix. Must have the same size and type as ``a`` .
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:param c: Destionation matrix. Will have the same size and type as ``a`` .
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.. c:function:: void multiply(const GpuMat\& a, const Scalar\& sc, GpuMat\& c)
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* **a** Source matrix. ``CV_32FC1`` and ``CV_32FC2`` matrixes are supported for now.
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* **b** Scalar to be multiplied by.
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* **c** Destination matrix. Will have the same size and type as ``a`` .
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See also:
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:func:`multiply` .
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.. index:: gpu::divide
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gpu::divide
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---------------
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.. c:function:: void gpu::divide(const GpuMat\& a, const GpuMat\& b, GpuMat\& c)
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Performs per-element division of two matrices (or division of matrix by scalar).
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:param a: First source matrix. ``CV_8UC1`` , ``CV_8UC4`` , ``CV_32SC1`` and ``CV_32FC1`` matrices are supported for now.
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:param b: Second source matrix. Must have the same size and type as ``a`` .
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:param c: Destionation matrix. Will have the same size and type as ``a`` .
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.. c:function:: void divide(const GpuMat\& a, const Scalar\& sc, GpuMat\& c)
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* **a** Source matrix. ``CV_32FC1`` and ``CV_32FC2`` matrixes are supported for now.
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* **b** Scalar to be divided by.
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* **c** Destination matrix. Will have the same size and type as ``a`` .
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This function in contrast to
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:func:`divide` uses round-down rounding mode.
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See also:
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:func:`divide` .
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.. index:: gpu::exp
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gpu::exp
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------------
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.. c:function:: void gpu::exp(const GpuMat\& a, GpuMat\& b)
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Computes exponent of each matrix element.
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:param a: Source matrix. ``CV_32FC1`` matrixes are supported for now.
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:param b: Destination matrix. Will have the same size and type as ``a`` .
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See also:
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:func:`exp` .
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.. index:: gpu::log
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gpu::log
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------------
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.. c:function:: void gpu::log(const GpuMat\& a, GpuMat\& b)
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Computes natural logarithm of absolute value of each matrix element.
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:param a: Source matrix. ``CV_32FC1`` matrixes are supported for now.
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:param b: Destination matrix. Will have the same size and type as ``a`` .
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See also:
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:func:`log` .
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.. index:: gpu::absdiff
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gpu::absdiff
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----------------
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.. c:function:: void gpu::absdiff(const GpuMat\& a, const GpuMat\& b, GpuMat\& c)
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Computes per-element absolute difference of two matrices (or of matrix and scalar).
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:param a: First source matrix. ``CV_8UC1`` , ``CV_8UC4`` , ``CV_32SC1`` and ``CV_32FC1`` matrices are supported for now.
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:param b: Second source matrix. Must have the same size and type as ``a`` .
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:param c: Destionation matrix. Will have the same size and type as ``a`` .
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.. c:function:: void absdiff(const GpuMat\& a, const Scalar\& s, GpuMat\& c)
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* **a** Source matrix. ``CV_32FC1`` matrixes are supported for now.
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* **b** Scalar to be subtracted from the source matrix elements.
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* **c** Destination matrix. Will have the same size and type as ``a`` .
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See also:
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:func:`absdiff` .
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.. index:: gpu::compare
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gpu::compare
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----------------
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.. c:function:: void gpu::compare(const GpuMat\& a, const GpuMat\& b, GpuMat\& c, int cmpop)
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Compares elements of two matrices.
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:param a: First source matrix. ``CV_8UC4`` and ``CV_32FC1`` matrices are supported for now.
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:param b: Second source matrix. Must have the same size and type as ``a`` .
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:param c: Destination matrix. Will have the same size as ``a`` and be ``CV_8UC1`` type.
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:param cmpop: Flag specifying the relation between the elements to be checked:
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* **CMP_EQ** :math:`=`
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* **CMP_GT** :math:`>`
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* **CMP_GE** :math:`\ge`
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* **CMP_LT** :math:`<`
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* **CMP_LE** :math:`\le`
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* **CMP_NE** :math:`\ne`
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See also:
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:func:`compare` .
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.. index:: gpu::bitwise_not
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.. _gpu::bitwise_not:
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gpu::bitwise_not
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--------------------
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.. c:function:: void gpu::bitwise_not(const GpuMat\& src, GpuMat\& dst,
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const GpuMat\& mask=GpuMat())
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.. c:function:: void gpu::bitwise_not(const GpuMat\& src, GpuMat\& dst,
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const GpuMat\& mask, const Stream\& stream)
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Performs per-element bitwise inversion.
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:param src: Source matrix.
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:param dst: Destination matrix. Will have the same size and type as ``src`` .
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:param mask: Optional operation mask. 8-bit single channel image.
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:param stream: Stream for the asynchronous version.
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See also:
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.
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.. index:: gpu::bitwise_or
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.. _gpu::bitwise_or:
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gpu::bitwise_or
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-------------------
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.. c:function:: void gpu::bitwise_or(const GpuMat\& src1, const GpuMat\& src2, GpuMat\& dst,
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const GpuMat\& mask=GpuMat())
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.. c:function:: void gpu::bitwise_or(const GpuMat\& src1, const GpuMat\& src2, GpuMat\& dst,
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const GpuMat\& mask, const Stream\& stream)
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Performs per-element bitwise disjunction of two matrices.
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:param src1: First source matrix.
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:param src2: Second source matrix. It must have the same size and type as ``src1`` .
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:param dst: Destination matrix. Will have the same size and type as ``src1`` .
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:param mask: Optional operation mask. 8-bit single channel image.
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:param stream: Stream for the asynchronous version.
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See also:
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.
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.. index:: gpu::bitwise_and
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.. _gpu::bitwise_and:
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gpu::bitwise_and
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--------------------
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.. c:function:: void gpu::bitwise_and(const GpuMat\& src1, const GpuMat\& src2, GpuMat\& dst,
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const GpuMat\& mask=GpuMat())
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.. c:function:: void gpu::bitwise_and(const GpuMat\& src1, const GpuMat\& src2, GpuMat\& dst,
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const GpuMat\& mask, const Stream\& stream)
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Performs per-element bitwise conjunction of two matrices.
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:param src1: First source matrix.
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:param src2: Second source matrix. It must have the same size and type as ``src1`` .
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:param dst: Destination matrix. Will have the same size and type as ``src1`` .
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:param mask: Optional operation mask. 8-bit single channel image.
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:param stream: Stream for the asynchronous version.
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See also:
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.
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.. index:: gpu::bitwise_xor
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.. _gpu::bitwise_xor:
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gpu::bitwise_xor
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--------------------
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.. c:function:: void gpu::bitwise_xor(const GpuMat\& src1, const GpuMat\& src2, GpuMat\& dst,
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const GpuMat\& mask=GpuMat())
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.. c:function:: void gpu::bitwise_xor(const GpuMat\& src1, const GpuMat\& src2, GpuMat\& dst,
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const GpuMat\& mask, const Stream\& stream)
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Performs per-element bitwise "exclusive or" of two matrices.
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:param src1: First source matrix.
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:param src2: Second source matrix. It must have the same size and type as ``src1`` .
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:param dst: Destination matrix. Will have the same size and type as ``src1`` .
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:param mask: Optional operation mask. 8-bit single channel image.
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:param stream: Stream for the asynchronous version.
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See also:
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.
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.. index:: gpu::min
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gpu::min
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------------
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.. c:function:: void gpu::min(const GpuMat\& src1, const GpuMat\& src2, GpuMat\& dst)
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.. c:function:: void gpu::min(const GpuMat\& src1, const GpuMat\& src2, GpuMat\& dst,
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const Stream\& stream)
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Computes per-element minimum of two matrices (or of matrix and scalar).
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:param src1: First source matrix.
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:param src2: Second source matrix.
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:param dst: Destination matrix. Will have the same size and type as ``src1`` .
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:param stream: Stream for the asynchronous version.
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.. c:function:: void gpu::min(const GpuMat\& src1, double src2, GpuMat\& dst)
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.. c:function:: void gpu::min(const GpuMat\& src1, double src2, GpuMat\& dst,
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const Stream\& stream)
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* **src1** Source matrix.
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* **src2** Scalar to be compared with.
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* **dst** Destination matrix. Will have the same size and type as ``src1`` .
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* **stream** Stream for the asynchronous version.
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See also:
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:func:`min` .
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.. index:: gpu::max
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gpu::max
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------------
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.. c:function:: void gpu::max(const GpuMat\& src1, const GpuMat\& src2, GpuMat\& dst)
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.. c:function:: void gpu::max(const GpuMat\& src1, const GpuMat\& src2, GpuMat\& dst,
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const Stream\& stream)
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Computes per-element maximum of two matrices (or of matrix and scalar).
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:param src1: First source matrix.
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:param src2: Second source matrix.
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:param dst: Destination matrix. Will have the same size and type as ``src1`` .
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:param stream: Stream for the asynchronous version.
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.. c:function:: void max(const GpuMat\& src1, double src2, GpuMat\& dst)
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.. c:function:: void max(const GpuMat\& src1, double src2, GpuMat\& dst,
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const Stream\& stream)
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* **src1** Source matrix.
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* **src2** Scalar to be compared with.
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* **dst** Destination matrix. Will have the same size and type as ``src1`` .
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* **stream** Stream for the asynchronous version.
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See also:
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:func:`max` .
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