@Test
/**
* 1. JaveCV Face Detect image in SequenceFile from S3:// 2. JaveCV Face Detect image in
* SequenceFile from hdfs:// Before hdfs over HDFS is implemented, do $hadoop fs -cp
* hdfs://<path>/tmp/lena.png.seq s3://ori-tmp/lena.png.seq Eclipse:
* -Djava.library.path=/home/heq/hadoop-2.2.0/lib/native
*
* @throws Exception
*/
public void testJavaCVFaceDetectionFromS3HDFS() throws Exception {
String inputURI =
"file://" + new File(this.getClass().getResource("/lena.png").getFile()).getAbsolutePath();
String s3URI = "s3n://ori-tmp/lena.png.seq";
Util.writeToSequenceFile(inputURI, s3URI, new SnappyCodec());
byte[] pngbytes = Util.readSequenceFileFromS3(s3URI);
BufferedImage rawimage = ImageIO.read(new ByteArrayInputStream(pngbytes));
List<int[]> faces = OpenCV.detectFace(rawimage);
assertTrue(faces.size() == 1);
String hdfsURI = hadoopMaster + "/tmp/lena.png.seq";
Util.writeToSequenceFile(inputURI, hdfsURI, new SnappyCodec());
pngbytes = Util.readSequenceFileFromHDFS(hdfsURI);
rawimage = ImageIO.read(new ByteArrayInputStream(pngbytes));
faces = OpenCV.detectFace(rawimage);
assertTrue(faces.size() == 1);
}
@Test
/**
* Test image in compressed PPM format as used in NIST Colorferet database Eclipse:
* -Djava.library.path=/home/heq/hadoop-2.2.0/lib/native
*
* @throws Exception
*/
public void testFaceDetectionInPPMFromS3() throws Exception {
String file = "00001_930831_hl_a.ppm";
String inputURI = "s3n://ori-colorferetsubset/00001/" + file + ".bz2";
String outputURI = hadoopMaster + "/tmp/" + file + ".seq";
Util.writeToSequenceFile(inputURI, outputURI, new SnappyCodec());
byte[] ppmbytes = Util.readSequenceFileFromHDFS(outputURI);
logger.debug("file size= {}", ppmbytes.length);
ImageInputStream iis = ImageIO.createImageInputStream(new ByteArrayInputStream(ppmbytes));
BufferedImage rawimage = PPMImageReader.read(iis);
List<int[]> faces = OpenCV.detectFace(rawimage);
assertTrue(faces.size() == 1);
}