/// <summary>
/// Draw a contour.
/// </summary>
/// <param name="contour"> Chain code contour.</param>
/// <param name="img">Image to draw on.</param>
public static void RenderContourChainCode(CvContourChainCode contour, IplImage img)
{
RenderContourChainCode(contour, img, new CvScalar(255, 255, 255, 0));
}
/// <summary>
/// Draw a contour.
/// </summary>
/// <param name="contour"> Chain code contour.</param>
/// <param name="img">Image to draw on.</param>
/// <param name="color">Color to draw (default, white).</param>
public static void RenderContourChainCode(CvContourChainCode contour, IplImage img, CvScalar color)
{
if (contour == null)
throw new ArgumentNullException("contour");
if (img == null)
throw new ArgumentNullException("img");
CvBlobInvoke.cvb_cvRenderContourChainCode(contour.CvPtr, img.CvPtr, color);
}
/// <summary>
/// Convert a chain code contour to a polygon.
/// </summary>
/// <param name="cc">Chain code contour.</param>
/// <returns>A polygon.</returns>
public static CvContourPolygon ConvertChainCodesToPolygon(CvContourChainCode cc)
{
if (cc == null)
throw new ArgumentNullException("cc");
IntPtr ptr = CvBlobInvoke.cvb_cvConvertChainCodesToPolygon(cc.CvPtr);
if (ptr == IntPtr.Zero)
return null;
else
return new CvContourPolygon(ptr);
}