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\page shape_recognition_page Shape recognition from a picture

\note This functionality is not fully operational yet. It is provided for testing purpose and because it might already be helpful in some situations. 

This tool allows you to create geometrical shapes automatically out from pictures elements by performing shape recognition algorithms.
<b>Contours</b> or <b>Corners</b> can be built.

\b Example: 

Détection of the cost line on a nautical chart

\image html contour_detection_example2.png 

To use the <b>Shape recogition</b> tool you have to \ref import_picture_page "Import a picture" in the view first.Then you can choose to create either <b>contours</b> or <b>corners</b> out from this picture. 

To create <b>Contours</b> :

<ol>
  <li> In the <b>Picture</b> field select a previously imported picture.</li>
  
  <li> Click on \image html occ_view_camera_dump.png </li>
  
  <li> Find a zone in the picture which color is representative of the zone you want to find the frontier of. Draw a rectangle on it to take a <b>Snapshot</b>.</li>
  
  <li> Apply </li>
</ol>



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