Examples of net.sourceforge.tess4j.Tesseract

net.sourceforge.tess4j.Tesseract

An object layer on top of TessAPI, provides character recognition support for common image formats, and multi-page TIFF images beyond the uncompressed, binary TIFF format supported by Tesseract OCR engine. The extended capabilities are provided by the Java Advanced Imaging Image I/O Tools.

Support for PDF documents is available through Ghost4J, a JNA wrapper for GPL Ghostscript, which should be installed and included in system path.

Any program that uses the library will need to ensure that the required libraries (the .jar files for jna, jai-imageio, and ghost4j) are in its compile and run-time classpath.

     * @param image An image to be processed by OCR. Should be cropped and filtered to ensure the contrast is sufficient.
     * @return The text that was recognised in the image
     */
    protected String performOcr(BufferedImage image, int iteration) throws OcrException {
        try {
            Tesseract instance = Tesseract.getInstance();
            instance.setPageSegMode(getTesseractPageSegMode(iteration));
            String output = instance.doOCR(image);
            return output.trim();
        } catch (Exception e) {
            throw new OcrException("Error performing OCR", e);
        }
    }

   * Processes an images file using Tesseract OCR and returns a boolean given success
   * @param image the image file to process
   * @return true if successful, else false
   */
  public boolean takeImage(File image) {
    Tesseract instance = Tesseract.getInstance();


    try {
      String result = instance.doOCR(image);
      processOCR(result);
      return true;
    }
    catch (TesseractException e) {
      System.err.println(e.getMessage());

Examples of net.sourceforge.tess4j.Tesseract

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