public CharInfo(PlateChar plateChar, Mat originalMat, Rect originalRect, PlateLocateMethod plateLocateMethod, CharSplitMethod charSplitMethod)
{
this.PlateChar = plateChar;
this.OriginalMat = originalMat;
this.OriginalRect = originalRect;
this.PlateLocateMethod = plateLocateMethod;
this.CharSplitMethod = charSplitMethod;
}
//原始分割
public static List <CharInfo> SplitePlateByOriginal(Mat originalMat, Mat plateMat,
PlateColor plateColor,
CharSplitMethod charSplitMethod = CharSplitMethod.原图,
int leftLimit = 0, int rightLimit = 0,
int topLimit = 0, int bottomLimit = 0,
int minWidth = 2, int maxWidth = 30,
int minHeight = 10, int maxHeight = 80,
float minRatio = 0.08f, float maxRatio = 2f)
{
List <CharInfo> result = new List <CharInfo>();
Mat gray = plateMat.CvtColor(ColorConversionCodes.BGR2GRAY);
Mat matOfClearMaodingAndBorder = ClearMaodingAndBorder(gray, plateColor);
OpenCvSharp.Point[][] contours = null;
HierarchyIndex[] hierarchyIndices = null;
matOfClearMaodingAndBorder.FindContours(out contours, out hierarchyIndices,
RetrievalModes.External, ContourApproximationModes.ApproxNone);
List <Rect> rects = new List <Rect>();
//将轮廓使用RECT矩形框选出来
for (int index = 0; index < contours.Length; index++)
{
Rect rect = Cv2.BoundingRect(contours[index]);
if (NotOnBorder(rect, plateMat.Size(), leftLimit, rightLimit, topLimit, bottomLimit) &&
VerifyRect(rect, minWidth, maxWidth, minHeight, maxHeight, minRatio, maxRatio))
{
rects.Add(rect);
}
}
rects = RejectInnerRectFromRects(rects);
//rects = RejectOutFromRects(rects);
rects = AdjustRects(rects);
if (rects.Count == 0)
{
return(result);
}
for (int index = 0; index < rects.Count; index++)
{
CharInfo plateCharInfo = new CharInfo();
rects[index] = Utilities.GetSafeRect(rects[index], originalMat);
Rect rectROI = rects[index];
if (rectROI.Width == 0 && rectROI.Height == 0)
{
continue;
}
Mat matROI = originalMat.SubMat(rectROI);
plateCharInfo.OriginalMat = matROI;
plateCharInfo.OriginalRect = rectROI;
plateCharInfo.CharSplitMethod = charSplitMethod;
result.Add(plateCharInfo);
}
result.Sort(new CharInfoLeftComparer());
return(result);
}
//
public static PlateInfo GetPlateInfo(PlateInfo plateInfo, PlateColor plateColor, CharSplitMethod
splitMethod)
{
PlateInfo result = new PlateInfo();
result.PlateCategory = plateInfo.PlateCategory;
result.OriginalMat = plateInfo.OriginalMat;
result.OriginalRect = plateInfo.OriginalRect;
result.PlateLocateMethod = plateInfo.PlateLocateMethod;
result.PlateColor = plateColor;
List <CharInfo> charInfos = new List <CharInfo>();
switch (splitMethod)
{
case CharSplitMethod.伽马:
charInfos = CharSegment_V3.SplitePlateByGammaTransform(plateInfo.OriginalMat,
plateColor);
break;
case CharSplitMethod.指数:
charInfos = CharSegment_V3.SplitePlateByIndexTransform(plateInfo.OriginalMat, plateColor);
break;
case CharSplitMethod.对数:
charInfos = CharSegment_V3.SplitePlateByLogTransform(plateInfo.OriginalMat, plateColor);
break;
case CharSplitMethod.原图:
default:
charInfos = CharSegment_V3.SplitePlateByOriginal(plateInfo.OriginalMat,
plateInfo.OriginalMat, plateColor);
break;
}
//启动SVM识别字符并将其中的非字符去除
for (int index = charInfos.Count - 1; index >= 0; index--)
{
CharInfo charInfo = charInfos[index];
PlateChar plateChar = PlateChar_SVM.Test(charInfo.OriginalMat);
if (plateChar == PlateChar.非字符)
{
charInfos.RemoveAt(index);
}
charInfo.PlateChar = plateChar;
}
result.CharInfos = charInfos;
//检测
CheckLeftAndRightToRemove(result);
CheckPlateColor(result);
return(result);
}
