public void testSearch() throws IOException {
IndexReader reader = DirectoryReader.open(FSDirectory.open(new File(indexPath)));
int numDocs = reader.numDocs();
System.out.println("numDocs = " + numDocs);
ImageSearcher searcher = ImageSearcherFactory.createScalableColorImageSearcher(50);
FileInputStream imageStream = new FileInputStream(testFilesPath + testFiles[0]);
BufferedImage bimg = ImageIO.read(imageStream);
ImageSearchHits hits = null;
long time = System.currentTimeMillis();
for (int i = 0; i < numsearches; i++) {
hits = searcher.search(bimg, reader);
}
time = System.currentTimeMillis() - time;
System.out.println(
((float) time / (float) numsearches)
+ " ms per search with image, averaged on "
+ numsearches);
for (int i = 0; i < 5; i++) {
System.out.println(
hits.score(i)
+ ": "
+ hits.doc(i).getField(DocumentBuilder.FIELD_NAME_IDENTIFIER).stringValue());
}
Document document = hits.doc(0);
time = System.currentTimeMillis();
for (int i = 0; i < numsearches; i++) {
hits = searcher.search(document, reader);
}
time = System.currentTimeMillis() - time;
System.out.println(
((float) time / (float) numsearches)
+ " ms per search with document, averaged on "
+ numsearches);
for (int i = 0; i < 5; i++) {
System.out.println(
hits.score(i)
+ ": "
+ hits.doc(i).getField(DocumentBuilder.FIELD_NAME_IDENTIFIER).stringValue());
}
document = getDocumentBuilder().createDocument(bimg, testFilesPath + testFiles[0]);
time = System.currentTimeMillis();
for (int i = 0; i < numsearches; i++) {
hits = searcher.search(document, reader);
}
time = System.currentTimeMillis() - time;
System.out.println(
((float) time / (float) numsearches)
+ " ms per search with document, averaged on "
+ numsearches);
for (int i = 0; i < 5; i++) {
System.out.println(
hits.score(i)
+ ": "
+ hits.doc(i).getField(DocumentBuilder.FIELD_NAME_IDENTIFIER).stringValue());
}
}
/**
* There was an error that images with the same score but different documents in the index were
* not included in the result list. Here's the test for that.
*/
public void testDuplicatesInIndex() throws IOException {
indexFiles("src\\test\\resources\\images", "index-large-new", 0, true);
indexFiles("src\\test\\resources\\images", "index-large-new", 0, false);
indexFiles("src\\test\\resources\\images", "index-large-new", 0, false);
ImageSearcher s = searchers[0];
IndexReader reader = DirectoryReader.open(FSDirectory.open(new File("index-large-new")));
Document query = reader.document(0);
ImageSearchHits hits = s.search(query, reader);
FileUtils.saveImageResultsToPng(
"duplicate_", hits, query.getValues(DocumentBuilder.FIELD_NAME_IDENTIFIER)[0]);
}
public void testFindDuplicates() throws Exception {
IndexReader reader = DirectoryReader.open(FSDirectory.open(new File(indexPath)));
int numDocs = reader.numDocs();
System.out.println("numDocs = " + numDocs);
ImageSearcher searcher = ImageSearcherFactory.createCEDDImageSearcher(50);
ImageDuplicates imageDuplicates = searcher.findDuplicates(reader);
if (imageDuplicates == null) {
System.out.println("No duplicates found");
return;
}
for (int i = 0; i < imageDuplicates.length(); i++) {
System.out.println(imageDuplicates.getDuplicate(i).toString());
}
}
public void computeErrorRate(ImageSearcher searcher, String prefix)
throws IOException, InstantiationException, IllegalAccessException {
// int maxHits = 10;
IndexReader reader = DirectoryReader.open(FSDirectory.open(new File(testIndex)));
for (Iterator<String> testIterator = testcases.keySet().iterator(); testIterator.hasNext(); ) {
queryImage = testIterator.next();
Document query;
if (cutImages) {
BufferedImage bimg =
ImageUtils.cropImage(ImageIO.read(new FileInputStream(queryImage)), 0, 0, 200, 69);
query = builder.createDocument(new FileInputStream(queryImage), queryImage);
} else query = builder.createDocument(new FileInputStream(queryImage), queryImage);
ImageSearchHits hits = searcher.search(query, reader);
// hits = rerank(hits, query, ColorLayout.class, DocumentBuilder.FIELD_NAME_COLORLAYOUT);
for (int i = 0; i < hits.length(); i++) {
if (hits.doc(i)
.get("descriptorImageIdentifier")
.toLowerCase()
.endsWith(testcases.get(queryImage))) {
System.out.println(
queryImage.substring(queryImage.lastIndexOf('\\') + 1)
+ "-"
+ prefix
+ " -> Found at rank "
+ i
+ " ("
+ hits.length()
+ ")");
}
}
// saveToHtml(queryImage.substring(queryImage.lastIndexOf('\\') + 1) + "-" + prefix, hits,
// queryImage);
}
}
public void tttestMAPLocalFeatureHistogram() throws IOException {
int maxSearches = 200;
int maxHits = 100;
IndexReader reader = IndexReader.open(FSDirectory.open(new File(indexPath)));
IndexSearcher is = new IndexSearcher(reader);
ImageSearcher searcher;
// searcher = new SiftLocalFeatureHistogramImageSearcher(maxHits);
searcher = ImageSearcherFactory.createColorHistogramImageSearcher(maxHits);
// searcher = ImageSearcherFactory.createCEDDImageSearcher(maxHits);
// searcher = ImageSearcherFactory.createFCTHImageSearcher(maxHits);
Pattern p = Pattern.compile("\\\\\\d+\\.jpg");
double map = 0;
for (int i = 0; i < sampleQueries.length; i++) {
int id = sampleQueries[i];
System.out.print("id = " + id + ": ");
String file = testExtensive + "/" + id + ".jpg";
ImageSearchHits hits = searcher.search(findDoc(reader, id + ".jpg"), reader);
int goodOnes = 0;
double avgPrecision = 0;
for (int j = 0; j < hits.length(); j++) {
Document d = hits.doc(j);
String hitsId = d.getValues(DocumentBuilder.FIELD_NAME_IDENTIFIER)[0];
Matcher matcher = p.matcher(hitsId);
if (matcher.find()) hitsId = hitsId.substring(matcher.start() + 1, hitsId.lastIndexOf("."));
else fail("Did not get the number ...");
int testID = Integer.parseInt(hitsId);
// System.out.print(". " + hitsId + "/" +
// d.getValues(DocumentBuilder.FIELD_NAME_IDENTIFIER)[0]+ " ");
if ((int) Math.floor(id / 100) == (int) Math.floor(testID / 100)) {
goodOnes++;
System.out.print("x");
} else {
System.out.print("o");
}
// System.out.print(" (" + testID + ") ");
avgPrecision += (double) goodOnes / (double) (j + 1);
}
avgPrecision = avgPrecision / hits.length();
map += avgPrecision;
System.out.println(" " + avgPrecision + " (" + map / (i + 1) + ")");
}
map = map / sampleQueries.length;
System.out.println("map = " + map);
}
public void testCreateAndSearchSmallIndex() throws IOException {
for (int i = 0, buildersLength = builders.length; i < buildersLength; i++) {
DocumentBuilder b = builders[i];
// create an index with a specific builder:
IndexWriter iw = LuceneUtils.createIndexWriter(indexPath + "-small", true);
for (String identifier : testFiles) {
Document doc =
b.createDocument(new FileInputStream(testFilesPath + identifier), identifier);
doc.add(new StoredField("video_file", "surgery1.mp4"));
doc.add(new StoredField("timestamp", "25"));
iw.addDocument(doc);
}
iw.close();
ImageSearcher s = searchers[i];
IndexReader reader = DirectoryReader.open(FSDirectory.open(new File(indexPath + "-small")));
for (int k = 0; k < reader.maxDoc(); k++) {
Document query = reader.document(k);
ImageSearchHits hits = s.search(query, reader);
for (int y = 0; y < hits.length(); y++) {
Document result = hits.doc(y);
if (y == 0) {
// check if the first result is the query:
assertEquals(
result.getValues(DocumentBuilder.FIELD_NAME_IDENTIFIER)[0].equals(
query.getValues(DocumentBuilder.FIELD_NAME_IDENTIFIER)[0]),
true);
System.out.println(result.getValues("video_file")[0]);
} else {
// check if they are ordered by distance:
assertEquals(hits.score(y) < hits.score(y - 1), true);
}
}
}
}
}
public void computeMAP(ImageSearcher searcher, String prefix, IndexReader reader)
throws IOException {
Pattern p = Pattern.compile("([0-9]+).jpg");
double map = 0;
double errorRate = 0d;
double precision10 = 0d;
double[] pr10cat = new double[10];
double[] pr10cnt = new double[10];
for (int i = 0; i < pr10cat.length; i++) {
pr10cat[i] = 0d;
pr10cnt[i] = 0d;
}
long sum = 0, ms = 0;
for (int i = 0; i < sampleQueries.length; i++) {
int id = sampleQueries[i];
String file = testExtensive + "/" + id + ".jpg";
ms = System.currentTimeMillis();
ImageSearchHits hits = searcher.search(findDoc(reader, id + ".jpg"), reader);
sum += (System.currentTimeMillis() - ms);
int goodOnes = 0;
double avgPrecision = 0d;
double precision10temp = 0d;
int countResults = 0;
for (int j = 0; j < hits.length(); j++) {
Document d = hits.doc(j);
String hitsId = d.getValues(DocumentBuilder.FIELD_NAME_IDENTIFIER)[0];
Matcher matcher = p.matcher(hitsId);
if (matcher.find()) hitsId = matcher.group(1);
else fail("Did not get the number ...");
int testID = Integer.parseInt(hitsId);
if (testID != id) countResults++;
if ((testID != id) && ((int) Math.floor(id / 100) == (int) Math.floor(testID / 100))) {
goodOnes++;
// Only if there is a change in recall
avgPrecision += (double) goodOnes / (double) countResults;
// System.out.print("x");
if (j <= 10) {
precision10temp += 1d;
}
} else {
if (j == 1) { // error rate
errorRate++;
}
}
} // end for loop iterating results.
// if (avgPrecision<=0) {
// System.out.println("avgPrecision = " + avgPrecision);
// System.out.println("goodOnes = " + goodOnes);
// }
assertTrue("Check if average precision is > 0", avgPrecision > 0);
assertTrue("Check if goodOnes is > 0", goodOnes > 0);
avgPrecision = avgPrecision / goodOnes;
precision10 += precision10temp / 10d;
// precision @ 10 for each category ...
pr10cat[(int) Math.floor(id / 100)] += precision10temp / 10d;
pr10cnt[(int) Math.floor(id / 100)] += 1d;
map += avgPrecision;
}
map = map / sampleQueries.length;
errorRate = errorRate / sampleQueries.length;
precision10 = precision10 / sampleQueries.length;
System.out.print(prefix + "\t");
System.out.print(String.format("%.5f", map) + '\t');
System.out.print(String.format("%.5f", precision10) + '\t');
System.out.print(String.format("%.5f", errorRate) + '\t');
// precision@10 per category
for (int i = 0; i < pr10cat.length; i++) {
double v = 0;
if (pr10cnt[i] > 0) v = pr10cat[i] / pr10cnt[i];
// System.out.print(i + ": ");
System.out.printf("%.5f\t", v);
}
System.out.printf("%2.3f\t", (double) sum / (double) sampleQueries.length);
System.out.println();
}