Update underline text detection parameters

veraPDF · Mar 28, 2024 · 1c85b6b · 1c85b6b
1 parent f347364
commit 1c85b6b
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/...f/wcag/algorithms/semanticalgorithms/consumers/SemanticDocumentPreprocessingConsumer.java b/...f/wcag/algorithms/semanticalgorithms/consumers/SemanticDocumentPreprocessingConsumer.java
@@ -112,12 +112,12 @@ private SortedSet<LineChunk> getHorizontalLines(TextChunk textChunk) {
                         -Double.MAX_VALUE, textChunk.getBaseLine()),
                 new LineChunk(textChunk.getPageNumber(), Double.MAX_VALUE,
                         textChunk.getBaseLine() - NodeUtils.UNDERLINED_TEXT_EPSILONS[1] * textChunk.getBoundingBox().getHeight(), Double.MAX_VALUE,
-                        textChunk.getBaseLine() - NodeUtils.UNDERLINED_TEXT_EPSILONS[2] * textChunk.getBoundingBox().getHeight()));
+                        textChunk.getBaseLine() - NodeUtils.UNDERLINED_TEXT_EPSILONS[1] * textChunk.getBoundingBox().getHeight()));
     }
 
     private boolean isUnderlinedText(TextChunk textChunk, LineChunk lineChunk) {
         if (NodeUtils.areOverlapping(textChunk, lineChunk) &&
-                (lineChunk.getWidth() < NodeUtils.UNDERLINED_TEXT_EPSILONS[3] * textChunk.getBoundingBox().getHeight())) {
+                (lineChunk.getWidth() < NodeUtils.UNDERLINED_TEXT_EPSILONS[2] * textChunk.getBoundingBox().getHeight())) {
             return true;
         }
         return false;

diff --git a/src/main/java/org/verapdf/wcag/algorithms/semanticalgorithms/utils/NodeUtils.java b/src/main/java/org/verapdf/wcag/algorithms/semanticalgorithms/utils/NodeUtils.java
@@ -13,7 +13,7 @@ public class NodeUtils {
 
 	public static final double EPSILON = 0.0001;
 	public static final double TABLE_BORDER_EPSILON = 0.011;
-	public static final double[] UNDERLINED_TEXT_EPSILONS = {0.08, 0.3, 0.3, 0.3};
+	public static final double[] UNDERLINED_TEXT_EPSILONS = {0.08, 0.35, 0.3};
 	private static final double[] HEADING_PROBABILITY_PARAMS = {0.3, 0.0291, 0.15, 0.27, 0.1, 0.25, 0.2, 0.5, 0.05, 0.1};
 	private static final double[] HEADING_PROBABILITY_PARAMS_SAME_FONT = {0.55, 0.15, 0.55, 0.4, 0.5, 0.15};
 	private static final double[] HEADING_PROBABILITY_PARAMS_DIFF_FONT = {0.44, 0.1, 0.4, 0.23, 0.35, 0.1};