/**
* Test of Orientation and script detection (OSD).
*
* @throws Exception while processing the image.
*/
@Test
public void testOSD() throws Exception {
logger.info("OSD");
int expResult = TessPageSegMode.PSM_AUTO_OSD;
IntBuffer orientation = IntBuffer.allocate(1);
IntBuffer direction = IntBuffer.allocate(1);
IntBuffer order = IntBuffer.allocate(1);
FloatBuffer deskew_angle = FloatBuffer.allocate(1);
File tiff = new File(this.testResourcesDataPath, "eurotext.tif");
BufferedImage image =
ImageIO.read(new FileInputStream(tiff)); // require jai-imageio lib to read TIFF
ByteBuffer buf = ImageIOHelper.convertImageData(image);
int bpp = image.getColorModel().getPixelSize();
int bytespp = bpp / 8;
int bytespl = (int) Math.ceil(image.getWidth() * bpp / 8.0);
TessAPI1.TessBaseAPIInit3(handle, datapath, language);
TessAPI1.TessBaseAPISetPageSegMode(handle, expResult);
int actualResult = TessAPI1.TessBaseAPIGetPageSegMode(handle);
logger.info("PSM: " + Utils.getConstantName(actualResult, TessPageSegMode.class));
TessAPI1.TessBaseAPISetImage(
handle, buf, image.getWidth(), image.getHeight(), bytespp, bytespl);
int success = TessAPI1.TessBaseAPIRecognize(handle, null);
if (success == 0) {
TessAPI1.TessPageIterator pi = TessAPI1.TessBaseAPIAnalyseLayout(handle);
TessAPI1.TessPageIteratorOrientation(pi, orientation, direction, order, deskew_angle);
logger.info(
String.format(
"Orientation: %s\nWritingDirection: %s\nTextlineOrder: %s\nDeskew angle: %.4f\n",
Utils.getConstantName(orientation.get(), TessOrientation.class),
Utils.getConstantName(direction.get(), TessWritingDirection.class),
Utils.getConstantName(order.get(), TessTextlineOrder.class),
deskew_angle.get()));
}
assertEquals(expResult, actualResult);
}
/**
* Test of extending Tesseract.
*
* @throws java.lang.Exception
*/
@Test
public void testExtendingTesseract() throws Exception {
logger.info("Extends Tesseract");
File imageFile = new File(this.testResourcesDataPath, "eurotext.tif");
String expResult = "The (quick) [brown] {fox} jumps!\nOver the $43,456.78 <lazy> #90 dog";
String[] expResults = expResult.split("\\s");
TessExtension instance1 = new TessExtension();
instance1.setDatapath(new File(datapath).getPath());
int pageIteratorLevel = TessPageIteratorLevel.RIL_WORD;
logger.info(
"PageIteratorLevel: "
+ Utils.getConstantName(pageIteratorLevel, TessPageIteratorLevel.class));
List<Word> result = instance1.getTextElements(imageFile, pageIteratorLevel);
// print the complete result
for (Word word : result) {
logger.info(word.toString());
}
List<String> text = new ArrayList<String>();
for (Word word : result.subList(0, expResults.length)) {
text.add(word.getText());
}
assertArrayEquals(expResults, text.toArray());
}