public ViDiReadResultList GenerateList(SegmentInput Input)
/* Generate lists of all relevant data: Score, X-position, width */
{
ViDiReadResultList result = new ViDiReadResultList();
string readResult = "";
List <double> xpos_list = new List <double>(); //list for x-positions of start of new segment
List <double> w_list = new List <double>(); //list for width of characters
List <double> score_list = new List <double>(); //list for score of characters
if (Input.Marking != null && Input.OcrString != null)
{
readResult = Input.OcrString;
IBlueMarking m = Input.Marking;
Point p = new Point();
int n = readResult.Length;
int i = 0;
while (i < n)
{
try
{
p = m.Views[0].Matches[0].Features[i].Position; //We assume only 1 model match and this model is 0
p = p.ToOriginalFromView(m.Views[0]); //Tranformation back to pixel image from Vidi image
xpos_list.Add(p.X);
score_list.Add(m.Views[0].Matches[0].Features[i].Score);
w_list.Add(m.Views[0].Matches[0].Features[i].Size.Width);
}
catch { }
}
}
else
{
readResult = "";
}
result.Read = readResult;
result.ScoreList = score_list;
result.XPosList = xpos_list;
result.WidthList = w_list;
return(result);
}
public SegmentResult Segment(SegmentInput input, double devW)
{
//Segment into list of Segment indexes and spaces
SegmentResult result = new SegmentResult();
PreFilterResult filtered = PreFilter(input);//Filter rubbish end of string
input.OcrString = filtered.OcrFiltered;
ViDiReadResultList lists = GenerateList(input); //Use filtered string to generate lists
double w = 0;
double xCurr = 0;
double xPrev = 0;
int nChar = lists.Read.Length;
double dev = devW; //consider space when difference between two positions is > dev * characterwidth
List <double> x_list = new List <double>(); //list for width of characters
x_list = lists.XPosList;
List <double> w_list = new List <double>(); //list for width of characters
w_list = lists.WidthList;
List <double> segm_x_list = new List <double>(); //list for x-positions of start of new segment
List <int> segm_i_list = new List <int>(); //list for character indexes of start of new segment
List <double> space_list = new List <double>(); //list for size of spaces of segment
if (nChar > 0 && x_list.Count == w_list.Count && x_list.Count == nChar) //Lists have same number of elements(should be the case)
{
w = w_list.Max(); //retain widest character as reference for calculating space
//First segment starts at first character - index 0 for X-position
xCurr = x_list[0];
segm_x_list.Add(x_list[0]);
segm_i_list.Add(0);
//Loop through the remaining characters --> list of index positions with start of segments
xPrev = xCurr;
int i = 1; //start at 1, we handled 0 above
while (i < nChar)
{
xCurr = x_list[i];
if ((xCurr - xPrev) > (dev * w)) //consider space when difference between two positions is > dev * characterwidth -->New segment
{
segm_x_list.Add(xCurr);
segm_i_list.Add(i);
space_list.Add(xCurr - xPrev);
}
xPrev = xCurr;
i++;
}
}
else
{
//
}
result.Nsegments = segm_i_list.Count; //Get number of segments
result.SegmentIndexList = segm_i_list;
result.SpaceList = space_list;
result.FilteredString = lists.Read;
return(result);
}
