332 lines
10 KiB
ReStructuredText
332 lines
10 KiB
ReStructuredText
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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--------------------
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.. c:function:: void gpu::bitwise_not(const GpuMat& src, GpuMat& dst, const GpuMat& mask=GpuMat())
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.. c:function:: void gpu::bitwise_not(const GpuMat& src, GpuMat& dst, 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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.. index:: 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, const GpuMat& mask=GpuMat())
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.. c:function:: void gpu::bitwise_or(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, 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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.. index:: 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, const GpuMat& mask=GpuMat())
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.. c:function:: void gpu::bitwise_and(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, 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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.. index:: 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, const GpuMat& mask=GpuMat())
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.. c:function:: void gpu::bitwise_xor(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, 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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.. 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, const Stream& stream)
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Computes per-element minimum of two matrices (or a matrix and a 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, const Stream& stream)
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.. c:function:: void gpu::max(const GpuMat& src1, double value, GpuMat& dst)
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.. c:function:: void gpu::max(const GpuMat& src1, double value, GpuMat& dst, const Stream& stream)
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Computes per-element maximum of two matrices (or a matrix and a scalar).
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:param src1: First source matrix.
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:param src2: Second source matrix.
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:param value: The scalar value to compare ``src1`` elements with
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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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See also:
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:func:`max` .
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