More refactoring, cleaner code

src/main/java/es/yonatan/tfg/Main.java

@@ -42,7 +42,7 @@ public class Main {
 
 		words.forEach(grid::insert);
 
-		int mergeCount = 1;
+		int mergeCount = 0;
 
 		for (int i = 0; i < mergeCount; i++) {
 			merge(grid);

src/main/java/es/yonatan/tfg/recognizer/unit/TesseractRecognizer.java

@@ -2,6 +2,7 @@ package es.yonatan.tfg.recognizer.unit;
 
 import es.yonatan.tfg.model.Unit;
 import es.yonatan.tfg.util.BoundingBox;
+import es.yonatan.tfg.util.Reference;
 import net.sourceforge.tess4j.ITessAPI;
 import net.sourceforge.tess4j.Tesseract;
 import net.sourceforge.tess4j.util.LoadLibs;
@@ -50,7 +51,6 @@ public final class TesseractRecognizer implements IUnitRecognizer<Unit> {
 
 	public static final class Builder {
 
-
 		private File dataPath;
 		private Accuracy accuracy;
 		private List<String> supportedLanguages;
@@ -130,10 +130,10 @@ public final class TesseractRecognizer implements IUnitRecognizer<Unit> {
 			tess.setLanguage(language);
 
 			if (charWhitelist != null && !charWhitelist.isEmpty())
-				tess.setVariable("tessedit_char_whitelist", charWhitelist);
+				tess.setVariable(Reference.TESSERACT_CHAR_WHITELIST, charWhitelist);
 
 			if (charBlacklist != null && !charBlacklist.isEmpty())
-				tess.setVariable("tessedit_char_blacklist", charBlacklist);
+				tess.setVariable(Reference.TESSERACT_CHAR_BLACKLIST, charBlacklist);
 
 			if (customVariables != null)
 				customVariables.forEach(tess::setVariable);

src/main/java/es/yonatan/tfg/util/Reference.java

+package es.yonatan.tfg.util;
+
+public final class Reference {
+	public static final String TESSERACT_CHAR_WHITELIST = "tessedit_char_whitelist";
+	public static final String TESSERACT_CHAR_BLACKLIST = "tessedit_char_blacklist";
+	public static final String TESSERACT_PRESERVE_INTERWORD_SPACES = "preserve_interword_spaces";
+}