Moved character segmentation code to its own directory

Conflicts:

	src/openalpr/CMakeLists.txt

src/openalpr/segmentation/charactersegmenter.h

@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2013 New Designs Unlimited, LLC
+ * Opensource Automated License Plate Recognition [http://www.openalpr.com]
+ *
+ * This file is part of OpenAlpr.
+ *
+ * OpenAlpr is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License
+ * version 3 as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef OPENALPR_CHARACTERSEGMENTER_H
+#define OPENALPR_CHARACTERSEGMENTER_H
+
+#include "opencv2/imgproc/imgproc.hpp"
+#include "constants.h"
+#include "binarize_wolf.h"
+#include "utility.h"
+#include "characterregion.h"
+#include "colorfilter.h"
+#include "verticalhistogram.h"
+#include "config.h"
+
+
+//const float MIN_BOX_WIDTH_PX = 4; // 4 pixels
+
+const cv::Scalar COLOR_DEBUG_EDGE(0,0,255); // Red
+const cv::Scalar COLOR_DEBUG_SPECKLES(0,0,255); // Red
+const cv::Scalar COLOR_DEBUG_MIN_HEIGHT(255,0,0); // Blue
+const cv::Scalar COLOR_DEBUG_MIN_AREA(255,0,0); // Blue
+const cv::Scalar COLOR_DEBUG_FULLBOX(255,255,0); // Blue-green
+const cv::Scalar COLOR_DEBUG_COLORFILTER(255,0,255); // Magenta
+const cv::Scalar COLOR_DEBUG_EMPTYFILTER(0,255,255); // Yellow
+
+class CharacterSegmenter
+{
+
+  public:
+    CharacterSegmenter(PipelineData* pipeline_data);
+    virtual ~CharacterSegmenter();
+
+    int confidence;
+
+
+  private:
+    Config* config;
+    PipelineData* pipeline_data;
+    
+    CharacterAnalysis* charAnalysis;
+
+    LineSegment top;
+    LineSegment bottom;
+
+    std::vector<cv::Mat> imgDbgGeneral;
+    std::vector<cv::Mat> imgDbgCleanStages;
+
+    std::vector<bool> filter(cv::Mat img, std::vector<std::vector<cv::Point> > contours, std::vector<cv::Vec4i> hierarchy);
+    std::vector<bool> filterByBoxSize(std::vector< std::vector<cv::Point> > contours, std::vector<bool> goodIndices, float minHeightPx, float maxHeightPx);
+    std::vector<bool> filterBetweenLines(cv::Mat img, std::vector<std::vector<cv::Point> > contours, std::vector<cv::Vec4i> hierarchy, std::vector<cv::Point> outerPolygon, std::vector<bool> goodIndices);
+    std::vector<bool> filterContourHoles(std::vector<std::vector<cv::Point> > contours, std::vector<cv::Vec4i> hierarchy, std::vector<bool> goodIndices);
+
+    std::vector<cv::Point> getBestVotedLines(cv::Mat img, std::vector<std::vector<cv::Point> > contours, std::vector<bool> goodIndices);
+    int getGoodIndicesCount(std::vector<bool> goodIndices);
+
+    cv::Mat getCharacterMask(cv::Mat img_threshold, std::vector<std::vector<cv::Point> > contours, std::vector<cv::Vec4i> hierarchy, std::vector<bool> goodIndices);
+    cv::Mat getCharBoxMask(cv::Mat img_threshold, std::vector<cv::Rect> charBoxes);
+
+    void removeSmallContours(std::vector<cv::Mat> thresholds, std::vector<std::vector<std::vector<cv::Point > > > allContours, float avgCharWidth, float avgCharHeight);
+
+    cv::Mat getVerticalHistogram(cv::Mat img, cv::Mat mask);
+    std::vector<cv::Rect> getHistogramBoxes(VerticalHistogram histogram, float avgCharWidth, float avgCharHeight, float* score);
+    std::vector<cv::Rect> getBestCharBoxes(cv::Mat img, std::vector<cv::Rect> charBoxes, float avgCharWidth);
+    std::vector<cv::Rect> combineCloseBoxes( std::vector<cv::Rect> charBoxes, float avgCharWidth);
+
+    std::vector<cv::Rect> get1DHits(cv::Mat img, int yOffset);
+
+    void cleanCharRegions(std::vector<cv::Mat> thresholds, std::vector<cv::Rect> charRegions);
+    void cleanBasedOnColor(std::vector<cv::Mat> thresholds, cv::Mat colorMask, std::vector<cv::Rect> charRegions);
+    void cleanMostlyFullBoxes(std::vector<cv::Mat> thresholds, const std::vector<cv::Rect> charRegions);
+    std::vector<cv::Rect> filterMostlyEmptyBoxes(std::vector<cv::Mat> thresholds, const  std::vector<cv::Rect> charRegions);
+    void filterEdgeBoxes(std::vector<cv::Mat> thresholds, const std::vector<cv::Rect> charRegions, float avgCharWidth, float avgCharHeight);
+
+    int getLongestBlobLengthBetweenLines(cv::Mat img, int col);
+
+    int isSkinnyLineInsideBox(cv::Mat threshold, cv::Rect box, std::vector<std::vector<cv::Point> > contours, std::vector<cv::Vec4i> hierarchy, float avgCharWidth, float avgCharHeight);
+
+    std::vector<cv::Point> getEncapsulatingLines(cv::Mat img, std::vector<std::vector<cv::Point> > contours, std::vector<bool> goodIndices);
+};
+
+#endif // OPENALPR_CHARACTERSEGMENTER_H