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@ -13,17 +13,17 @@ Calculates an absolute value of each matrix element. |
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:param m: matrix. |
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:param e: matrix expression. |
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``abs`` is a meta-function that is expanded to one of :ocv:func:`absdiff` forms: |
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``abs`` is a meta-function that is expanded to one of :ocv:func:`absdiff` or :ocv:func:`convertScaleAbs` forms: |
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* ``C = abs(A-B)`` is equivalent to ``absdiff(A, B, C)`` |
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* ``C = abs(A)`` is equivalent to ``absdiff(A, Scalar::all(0), C)`` |
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* ``C = Mat_<Vec<uchar,n> >(abs(A*alpha + beta))`` is equivalent to :ocv:funcx:`convertScaleAbs` (A, C, alpha, beta) |
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* ``C = Mat_<Vec<uchar,n> >(abs(A*alpha + beta))`` is equivalent to ``convertScaleAbs(A, C, alpha, beta)`` |
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The output matrix has the same size and the same type as the input one except for the last case, where ``C`` is ``depth=CV_8U`` . |
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.. seealso:: :ref:`MatrixExpressions`, :ocv:func:`absdiff` |
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.. seealso:: :ref:`MatrixExpressions`, :ocv:func:`absdiff`, :ocv:func:`convertScaleAbs` |
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absdiff |
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