Improving decoding for small images

dist/quagga.js

@@ -501,10 +501,18 @@ define(
                 }
             }
             ratio = sum / (modulo - numOnes);
+            if (ratio > 1.0) {
                 for (i = 0; i < counter.length; i++) {
                     norm = counter[i] === 1 ? counter[i] : counter[i] / ratio;
                     normalized.push(norm);
                 }
+            } else {
+                ratio = (sum + numOnes)/modulo;
+                for (i = 0; i < counter.length; i++) {
+                    norm = counter[i] / ratio;
+                    normalized.push(norm);
+                }
+            }
             return normalized;
         };
 

src/barcode_reader.js

@@ -65,10 +65,18 @@ define(
                 }
             }
             ratio = sum / (modulo - numOnes);
+            if (ratio > 1.0) {
                 for (i = 0; i < counter.length; i++) {
                     norm = counter[i] === 1 ? counter[i] : counter[i] / ratio;
                     normalized.push(norm);
                 }
+            } else {
+                ratio = (sum + numOnes)/modulo;
+                for (i = 0; i < counter.length; i++) {
+                    norm = counter[i] / ratio;
+                    normalized.push(norm);
+                }
+            }
             return normalized;
         };