diff --git a/config/openalpr.conf b/config/openalpr.conf
index 953a4c0..597b071 100644
--- a/config/openalpr.conf
+++ b/config/openalpr.conf
@@ -66,7 +66,7 @@ char_analysis_height_step_size = 0.10
 char_analysis_height_num_steps = 5
 
 segmentation_min_box_width_px = 4
-segmentation_min_charheight_percent = 0.3;
+segmentation_min_charheight_percent = 0.5;
 segmentation_max_segment_width_percent_vs_average = 1.35;
 
 plate_width_mm = 304.8
@@ -98,8 +98,8 @@ char_analysis_height_range = 0.15
 char_analysis_height_step_size = 0.10
 char_analysis_height_num_steps = 6
 
-segmentation_min_box_width_px = 8
-segmentation_min_charheight_percent = 0.5;
+segmentation_min_box_width_px = 5
+segmentation_min_charheight_percent = 0.4;
 segmentation_max_segment_width_percent_vs_average = 2.0;
 
 plate_width_mm = 520
diff --git a/src/openalpr/charactersegmenter.cpp b/src/openalpr/charactersegmenter.cpp
index ee21178..c027382 100644
--- a/src/openalpr/charactersegmenter.cpp
+++ b/src/openalpr/charactersegmenter.cpp
@@ -514,7 +514,7 @@ void CharacterSegmenter::cleanCharRegions(vector<Mat> thresholds, vector<Rect> c
   const float MIN_SPECKLE_HEIGHT_PERCENT = 0.13;
   const float MIN_SPECKLE_WIDTH_PX = 3;
   const float MIN_CONTOUR_AREA_PERCENT = 0.1;
-  const float MIN_CONTOUR_HEIGHT_PERCENT = 0.60;
+  const float MIN_CONTOUR_HEIGHT_PERCENT = config->segmentationMinCharHeightPercent;
 
   Mat mask = getCharBoxMask(thresholds[0], charRegions);
 
@@ -706,7 +706,7 @@ vector<Rect> CharacterSegmenter::filterMostlyEmptyBoxes(vector<Mat> thresholds,
   // clear all data for every box #3.
 
   //const float MIN_AREA_PERCENT = 0.1;
-  const float MIN_CONTOUR_HEIGHT_PERCENT = 0.65;
+  const float MIN_CONTOUR_HEIGHT_PERCENT = config->segmentationMinCharHeightPercent;
 
   Mat mask = getCharBoxMask(thresholds[0], charRegions);