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70 lines
2.5 KiB
70 lines
2.5 KiB
.. _drawing: |
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Drawing Functions for Keylines and Matches |
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========================================== |
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.. highlight:: cpp |
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drawLineMatches |
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--------------- |
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Draws the found matches of keylines from two images. |
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.. ocv:function:: void drawLineMatches( const Mat& img1, const std::vector<KeyLine>& keylines1, const Mat& img2, const std::vector<KeyLine>& keylines2, const std::vector<DMatch>& matches1to2, Mat& outImg, const Scalar& matchColor=Scalar::all(-1), const Scalar& singleLineColor=Scalar::all(-1), const std::vector<char>& matchesMask=std::vector<char>(), int flags=DrawLinesMatchesFlags::DEFAULT ) |
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:param img1: first image |
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:param keylines1: keylines extracted from first image |
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:param img2: second image |
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:param keylines2: keylines extracted from second image |
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:param matches1to2: vector of matches |
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:param outImg: output matrix to draw on |
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:param matchColor: drawing color for matches (chosen randomly in case of default value) |
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:param singleLineColor: drawing color for keylines (chosen randomly in case of default value) |
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:param matchesMask: mask to indicate which matches must be drawn |
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:param flags: drawing flags |
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.. note:: If both *matchColor* and *singleLineColor* are set to their default values, function draws matched lines and line connecting them with same color |
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The structure of drawing flags is shown in the following: |
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.. code-block:: cpp |
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/* struct for drawing options */ |
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struct CV_EXPORTS DrawLinesMatchesFlags |
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{ |
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enum |
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{ |
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DEFAULT = 0, // Output image matrix will be created (Mat::create), |
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// i.e. existing memory of output image may be reused. |
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// Two source images, matches, and single keylines |
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// will be drawn. |
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DRAW_OVER_OUTIMG = 1, // Output image matrix will not be |
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// created (using Mat::create). Matches will be drawn |
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// on existing content of output image. |
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NOT_DRAW_SINGLE_LINES = 2 // Single keylines will not be drawn. |
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}; |
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}; |
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.. |
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drawKeylines |
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------------ |
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Draws keylines. |
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.. ocv:function:: void drawKeylines( const Mat& image, const std::vector<KeyLine>& keylines, Mat& outImage, const Scalar& color=Scalar::all(-1), int flags=DrawLinesMatchesFlags::DEFAULT ) |
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:param image: input image |
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:param keylines: keylines to be drawn |
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:param outImage: output image to draw on |
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:param color: color of lines to be drawn (if set to defaul value, color is chosen randomly) |
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:param flags: drawing flags |
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Related pages |
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------------- |
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* :ref:`line_descriptor` |
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* :ref:`binary_descriptor` |
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* :ref:`matching`
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