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extended Sobel & Scharr description (ticket #1555). Added CV_32F/CV_64F format combination in sepFilter2D.

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Vadim Pisarevsky 2012-04-10 20:25:22 +00:00
parent 6e5e2aa32f
commit 07750a1c7e
2 changed files with 12 additions and 4 deletions
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14
modules/imgproc/doc/filtering.rst
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@ -1497,7 +1497,13 @@ Calculates the first, second, third, or mixed image derivatives using an extende
:param dst: Destination image of the same size and the same number of channels as ``src`` .
:param ddepth: Destination image depth.
:param ddepth: Destination image depth. The following combination of ``src.depth()`` and ``ddepth`` are supported:
* ``src.depth()`` = ``CV_8U``, ``ddepth`` = -1/``CV_16S``/``CV_32F``/``CV_64F``
* ``src.depth()`` = ``CV_16U``/``CV_16S``, ``ddepth`` = -1/``CV_32F``/``CV_64F``
* ``src.depth()`` = ``CV_32F``, ``ddepth`` = -1/``CV_32F``/``CV_64F``
* ``src.depth()`` = ``CV_64F``, ``ddepth`` = -1/``CV_64F``
when ``ddepth=-1``, the destination image will have the same depth as the source. In the case of 8-bit input images it will result in truncated derivatives.
:param xorder: Order of the derivative x.
@ -1572,9 +1578,9 @@ Calculates the first x- or y- image derivative using Scharr operator.
:param src: Source image.
:param dst: Destination image of the same size and the same number of channels as ``src`` .
:param dst: Destination image of the same size and the same number of channels as ``src``.
:param ddepth: Destination image depth.
:param ddepth: Destination image depth. See :ocv:func:`Sobel` for the list of supported combination of ``src.depth()`` and ``ddepth``.
:param xorder: Order of the derivative x.
@ -1582,7 +1588,7 @@ Calculates the first x- or y- image derivative using Scharr operator.
:param scale: Optional scale factor for the computed derivative values. By default, no scaling is applied. See :ocv:func:`getDerivKernels` for details.
:param delta: Optional delta value that is added to the results prior to storing them in ``dst`` .
:param delta: Optional delta value that is added to the results prior to storing them in ``dst``.
:param borderType: Pixel extrapolation method. See :ocv:func:`borderInterpolate` for details.

2
modules/imgproc/src/filter.cpp
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@ -2804,6 +2804,8 @@ cv::Ptr<cv::BaseRowFilter> cv::getLinearRowFilter( int srcType, int bufType,
if( sdepth == CV_32F && ddepth == CV_32F )
return Ptr<BaseRowFilter>(new RowFilter<float, float, RowVec_32f>
(kernel, anchor, RowVec_32f(kernel)));
if( sdepth == CV_32F && ddepth == CV_64F )
return Ptr<BaseRowFilter>(new RowFilter<float, double, RowNoVec>(kernel, anchor));
if( sdepth == CV_64F && ddepth == CV_64F )
return Ptr<BaseRowFilter>(new RowFilter<double, double, RowNoVec>(kernel, anchor));