其实我只是在这里回答了这个问题:Emgu CV 3 findContours and hierarchy parameter of type Vec4i equivalent?
正如你提到的,轮廓在 Emgu 3 中没有正确实现,但你可以手动调用 FindContours 方法,它会起作用:
/// <summary>
/// Find contours using the specific memory storage
/// </summary>
/// <param name="method">The type of approximation method</param>
/// <param name="type">The retrieval type</param>
/// <param name="stor">The storage used by the sequences</param>
/// <returns>
/// Contour if there is any;
/// null if no contour is found
/// </returns>
public static VectorOfVectorOfPoint FindContours(this Image<Gray, byte> image, ChainApproxMethod method = ChainApproxMethod.ChainApproxSimple,
Emgu.CV.CvEnum.RetrType type = RetrType.List) {
//Check that all parameters are valid.
VectorOfVectorOfPoint result = new VectorOfVectorOfPoint();
if (method == Emgu.CV.CvEnum.ChainApproxMethod.ChainCode) {
throw new ColsaNotImplementedException("Chain Code not implemented, sorry try again later");
}
CvInvoke.FindContours(image, result, null, type, method);
return result;
}
并使用这些轮廓:
VectorOfVectorOfPoint contours = canvass2.FindContours(ChainApproxMethod.ChainApproxSimple, RetrType.Tree);
int contCount = contours.Size;
for (int i = 0; i < contCount; i++) {
using (VectorOfPoint contour = contours[i]) {
segmentRectangles.Add(CvInvoke.BoundingRectangle(contour));
if (debug) {
finalCopy.Draw(CvInvoke.BoundingRectangle(contour), new Rgb(255, 0, 0), 5);
}
}
}
我刚刚经历了相同的转换过程,所以如果您能具体说明您遇到的其他问题,我可以回答很多问题。