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Refactored characteranalysis. Using TextLine class to hold character info. Needed for multiline char support

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This commit is contained in:
Matt Hill
2014-10-10 20:21:41 -04:00
parent d55e66d665
commit c156e8900e
15 changed files with 188 additions and 135 deletions
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28
src/openalpr/textdetection/characteranalysis.cpp
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@@ -44,11 +44,13 @@ void CharacterAnalysis::analyze()
pipeline_data->clearThresholds();
pipeline_data->thresholds = produceThresholds(pipeline_data->crop_gray, config);
timespec startTime;
getTime(&startTime);
TextLine textLine;
for (uint i = 0; i < pipeline_data->thresholds.size(); i++)
{
TextContours tc(pipeline_data->thresholds[i]);
@@ -148,28 +150,28 @@ void CharacterAnalysis::analyze()
displayImage(config, "Matching Contours", img_contours);
}
//charsegments = this->getPossibleCharRegions(img_threshold, allContours, allHierarchy, STARTING_MIN_HEIGHT + (bestFitIndex * HEIGHT_STEP), STARTING_MAX_HEIGHT + (bestFitIndex * HEIGHT_STEP));
this->linePolygon = getBestVotedLines(pipeline_data->crop_gray, bestContours);
if (this->linePolygon.size() > 0)
{
this->topLine = LineSegment(this->linePolygon[0].x, this->linePolygon[0].y, this->linePolygon[1].x, this->linePolygon[1].y);
this->bottomLine = LineSegment(this->linePolygon[3].x, this->linePolygon[3].y, this->linePolygon[2].x, this->linePolygon[2].y);
//this->charArea = getCharSegmentsBetweenLines(bestThreshold, bestContours, this->linePolygon);
textLine.topLine = LineSegment(this->linePolygon[0].x, this->linePolygon[0].y, this->linePolygon[1].x, this->linePolygon[1].y);
textLine.bottomLine = LineSegment(this->linePolygon[3].x, this->linePolygon[3].y, this->linePolygon[2].x, this->linePolygon[2].y);
filterBetweenLines(bestThreshold, bestContours, linePolygon);
this->charArea = getCharArea();
textLine.textArea = getCharArea(textLine.topLine, textLine.bottomLine);
if (this->charArea.size() > 0)
if (textLine.textArea.size() > 0)
{
this->charBoxTop = LineSegment(this->charArea[0].x, this->charArea[0].y, this->charArea[1].x, this->charArea[1].y);
this->charBoxBottom = LineSegment(this->charArea[3].x, this->charArea[3].y, this->charArea[2].x, this->charArea[2].y);
this->charBoxLeft = LineSegment(this->charArea[3].x, this->charArea[3].y, this->charArea[0].x, this->charArea[0].y);
this->charBoxRight = LineSegment(this->charArea[2].x, this->charArea[2].y, this->charArea[1].x, this->charArea[1].y);
textLine.charBoxTop = LineSegment(textLine.textArea[0].x, textLine.textArea[0].y, textLine.textArea[1].x, textLine.textArea[1].y);
textLine.charBoxBottom = LineSegment(textLine.textArea[3].x, textLine.textArea[3].y, textLine.textArea[2].x, textLine.textArea[2].y);
textLine.charBoxLeft = LineSegment(textLine.textArea[3].x, textLine.textArea[3].y, textLine.textArea[0].x, textLine.textArea[0].y);
textLine.charBoxRight = LineSegment(textLine.textArea[2].x, textLine.textArea[2].y, textLine.textArea[1].x, textLine.textArea[1].y);
}
}
pipeline_data->textLines.push_back(textLine);
this->thresholdsInverted = isPlateInverted();
}
@@ -733,7 +735,7 @@ bool CharacterAnalysis::verifySize(Mat r, float minHeightPx, float maxHeightPx)
return false;
}
vector<Point> CharacterAnalysis::getCharArea()
vector<Point> CharacterAnalysis::getCharArea(LineSegment topLine, LineSegment bottomLine)
{
const int MAX = 100000;
const int MIN= -1;