Created a new QR blackbox test with difficult exposures, mostly self-shadowing cases. We only get 34 out of 120 tests, which is about what I expected. To fix these we will have to move away from a global black point and towards a more sophisticated local thresholding algorithm.

git-svn-id: https://zxing.googlecode.com/svn/trunk@961 59b500cc-1b3d-0410-9834-0bbf25fbcc57

core/test/data/blackbox/qrcode-5/01.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/02.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/03.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/04.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/05.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/06.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/07.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/08.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/09.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/10.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/11.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/12.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/13.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/14.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/data/blackbox/qrcode-5/15.txt

@@ -0,0 +1 @@
+MECARD:N:Sean Owen;TEL:+12125658770;EMAIL:srowen@google.com;;

core/test/src/com/google/zxing/qrcode/QRCodeBlackBox5TestCase.java

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+/*
+ * Copyright 2009 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.zxing.qrcode;
+
+import com.google.zxing.MultiFormatReader;
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.common.AbstractBlackBoxTestCase;
+
+/**
+ * Some very difficult exposure conditions including self-shadowing, which happens a lot when
+ * pointing down at a barcode (i.e. the phone's shadow falls across part of the image).
+ *
+ * @author dswitkin@google.com (Daniel Switkin)
+ */
+public final class QRCodeBlackBox5TestCase extends AbstractBlackBoxTestCase {
+
+  public QRCodeBlackBox5TestCase() {
+    super("test/data/blackbox/qrcode-5", new MultiFormatReader(), BarcodeFormat.QR_CODE);
+    addTest(4, 4, 0.0f);
+    addTest(4, 4, 90.0f);
+    addTest(4, 4, 180.0f);
+    addTest(5, 5, 270.0f);
+  }
+
+}