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298 lines
8.9 KiB
ReStructuredText
298 lines
8.9 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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.. cpp:function:: void gpu::add(const GpuMat& src1, const GpuMat& src2, GpuMat& dst)
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.. cpp:function:: void gpu::add(const GpuMat& src1, const Scalar& src2, GpuMat& dst)
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Computes a matrix-matrix or matrix-scalar sum.
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:param src1: First source matrix. ``CV_8UC1``, ``CV_8UC4``, ``CV_32SC1``, and ``CV_32FC1`` matrices are supported for now.
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:param src2: Second source matrix or a scalar to be added to ``src1``.
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:param dst: Destination matrix with the same size and type as ``src1``.
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See Also: :cpp:func:`add`
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.. index:: gpu::subtract
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gpu::subtract
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-----------------
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.. cpp:function:: void gpu::subtract(const GpuMat& src1, const GpuMat& src2, GpuMat& dst)
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.. cpp:function:: void gpu::subtract(const GpuMat& src1, const Scalar& src2, GpuMat& dst)
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Computes a matrix-matrix or matrix-scalar difference.
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:param src1: First source matrix. ``CV_8UC1``, ``CV_8UC4``, ``CV_32SC1``, and ``CV_32FC1`` matrices are supported for now.
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:param src2: Second source matrix or a scalar to be subtracted from ``src1``.
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:param dst: Destination matrix with the same size and type as ``src1``.
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See Also: :cpp:func:`subtract`
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.. index:: gpu::multiply
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gpu::multiply
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-----------------
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.. cpp:function:: void gpu::multiply(const GpuMat& src1, const GpuMat& src2, GpuMat& dst)
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.. cpp:function:: void gpu::multiply(const GpuMat& src1, const Scalar& src2, GpuMat& dst)
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Computes a matrix-matrix or matrix-scalar per-element product.
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:param src1: First source matrix. ``CV_8UC1``, ``CV_8UC4``, ``CV_32SC1``, and ``CV_32FC1`` matrices are supported for now.
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:param src2: Second source matrix or a scalar to be multiplied by ``src1`` elements.
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:param dst: Destination matrix with the same size and type as ``src1``.
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See Also: :cpp:func:`multiply`
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.. index:: gpu::divide
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gpu::divide
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---------------
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.. cpp:function:: void gpu::divide(const GpuMat& src1, const GpuMat& src2, GpuMat& dst)
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.. cpp:function:: void gpu::divide(const GpuMat& src1, const Scalar& src2, GpuMat& dst)
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Computes a matrix-matrix or matrix-scalar sum.
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:param src1: First source matrix. ``CV_8UC1``, ``CV_8UC4``, ``CV_32SC1``, and ``CV_32FC1`` matrices are supported for now.
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:param src2: Second source matrix or a scalar. The ``src1`` elements are divided by it.
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:param dst: Destination matrix with the same size and type as ``src1``.
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This function, in contrast to :cpp:func:`divide`, uses a round-down rounding mode.
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See Also: :cpp:func:`divide`
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.. index:: gpu::exp
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gpu::exp
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------------
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.. cpp:function:: void gpu::exp(const GpuMat& src, GpuMat& dst)
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Computes an exponent of each matrix element.
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:param src: Source matrix. ``CV_32FC1`` matrixes are supported for now.
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:param dst: Destination matrix with the same size and type as ``src``.
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See Also: :cpp:func:`exp`
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.. index:: gpu::log
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gpu::log
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------------
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.. cpp:function:: void gpu::log(const GpuMat& src, GpuMat& dst)
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Computes a natural logarithm of absolute value of each matrix element.
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:param src: Source matrix. ``CV_32FC1`` matrixes are supported for now.
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:param dst: Destination matrix with the same size and type as ``src``.
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See Also: :cpp:func:`log`
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.. index:: gpu::absdiff
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gpu::absdiff
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----------------
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.. cpp:function:: void gpu::absdiff(const GpuMat& src1, const GpuMat& src2, GpuMat& dst)
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.. cpp:function:: void gpu::absdiff(const GpuMat& src1, const Scalar& src2, GpuMat& dst)
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Computes per-element absolute difference of two matrices (or of matrix and scalar).
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:param src1: First source matrix. ``CV_8UC1``, ``CV_8UC4``, ``CV_32SC1`` and ``CV_32FC1`` matrices are supported for now.
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:param src2: Second source matrix or a scalar to be added to ``src1``.
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:param dst: Destination matrix with the same size and type as ``src1``.
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See Also: :cpp:func:`absdiff`
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.. index:: gpu::compare
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gpu::compare
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----------------
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.. cpp:function:: void gpu::compare(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, int cmpop)
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Compares elements of two matrices.
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:param src1: First source matrix. ``CV_8UC4`` and ``CV_32FC1`` matrices are supported for now.
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:param src2: Second source matrix with the same size and type as ``a``.
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:param dst: Destination matrix with the same size as ``a`` and the ``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:** ``src1(.) == src2(.)``
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* **CMP_GT:** ``src1(.) < src2(.)``
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* **CMP_GE:** ``src1(.) <= src2(.)``
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* **CMP_LT:** ``src1(.) < src2(.)``
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* **CMP_LE:** ``src1(.) <= src2(.)``
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* **CMP_NE:** ``src1(.) != src2(.)``
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See Also: :cpp: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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.. cpp:function:: void gpu::bitwise_not(const GpuMat& src, GpuMat& dst, const GpuMat& mask=GpuMat())
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.. cpp:function:: void gpu::bitwise_not(const GpuMat& src, GpuMat& dst, const GpuMat& mask, const Stream& stream)
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Performs a per-element bitwise inversion.
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:param src: Source matrix.
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:param dst: Destination matrix with 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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.. cpp:function:: void gpu::bitwise_or(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, const GpuMat& mask=GpuMat())
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.. cpp:function:: void gpu::bitwise_or(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, const GpuMat& mask, const Stream& stream)
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Performs a 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 with the same size and type as ``src1``.
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:param dst: Destination matrix with 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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.. cpp:function:: void gpu::bitwise_and(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, const GpuMat& mask=GpuMat())
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.. cpp:function:: void gpu::bitwise_and(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, const GpuMat& mask, const Stream& stream)
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Performs a 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 with the same size and type as ``src1``.
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:param dst: Destination matrix with 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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.. cpp:function:: void gpu::bitwise_xor(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, const GpuMat& mask=GpuMat())
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.. cpp:function:: void gpu::bitwise_xor(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, const GpuMat& mask, const Stream& stream)
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Performs a per-element bitwise "exclusive or" operation of two matrices.
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:param src1: First source matrix.
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:param src2: Second source matrix with the same size and type as ``src1``.
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:param dst: Destination matrix with 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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.. cpp:function:: void gpu::min(const GpuMat& src1, const GpuMat& src2, GpuMat& dst)
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.. cpp:function:: void gpu::min(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, const Stream& stream)
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.. cpp:function:: void gpu::min(const GpuMat& src1, double src2, GpuMat& dst)
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.. cpp:function:: void gpu::min(const GpuMat& src1, double src2, GpuMat& dst, const Stream& stream)
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Computes the 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 or a scalar to compare ``src1`` elements with.
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:param dst: Destination matrix with the same size and type as ``src1``.
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:param stream: Stream for the asynchronous version.
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See Also: :cpp:func:`min`
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.. index:: gpu::max
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gpu::max
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------------
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.. cpp:function:: void gpu::max(const GpuMat& src1, const GpuMat& src2, GpuMat& dst)
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.. cpp:function:: void gpu::max(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, const Stream& stream)
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.. cpp:function:: void gpu::max(const GpuMat& src1, double src2, GpuMat& dst)
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.. cpp:function:: void gpu::max(const GpuMat& src1, double src2, GpuMat& dst, const Stream& stream)
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Computes the 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 or a scalar to compare ``src1`` elements with.
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:param dst: Destination matrix with the same size and type as ``src1``.
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:param stream: Stream for the asynchronous version.
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See Also: :cpp:func:`max`
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