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Aspose.OCR for Java
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Aspose.OCR for Java Aspose.OCR for Java

Overview

Aspose.Imaging for Java

processes scanned images or even smartphone photos in DJVU format and creates DJVU documents containing recognized text. To add it to your project, you just need to get Aspose.OCR

Aspose Maven Repository or specify Aspose Maven Repository configuration and install it within your Maven-based project by adding the following configurations to the pom.xml. For Graddle, Ivy, Sbt examples check out our repository .

Maven Dependency


 <dependency>
 <groupId>com.aspose</groupId>
 <artifactId>aspose-ocr</artifactId>
 <version>22.5</version>
 </dependency>

With Java OCR and just a few lines of code, you can create full-featured application that converts an DJVU image to Text document:

  • Create an instance of AsposeOcr class
  • Call AsposeOCR.RecognizePage method
  • Pass the DJVU file path as parameter
  • AsposeOCR.RecognizePage returns a String or file of Text type

System Requirements

Before running the example, make sure that Java 2 Platform, Standard Edition (J2SE) 6.0 (1.6) or later is installed on your system.

  • JDK 1.6 or higher is installed.


 //Create API instance
 AsposeOCR api = new AsposeOCR();

 //Prepare rectangles with texts.
 ArrayList rectArray = new ArrayList();

 rectArray.add(new Rectangle(138, 352, 2033, 537));
 rectArray.add(new Rectangle(147, 890, 2033, 1157));

 String result = api.RecognizePage("srcImage.png", rectArray);
 System.out.println("Result with rect: " + result);

    • DJVU What is DJVU File Format

    DjVu, pronounced as “déjà vu”, is a graphics file format intended for scanned documents and books especially those which contain the combination of text, drawings, images and photographs. It was developed by AT&T Labs. It uses multiple techniques like image layer separation of text and background images, progressive loading, arithmetic coding and lossy compression for bitonal images. Since DJVU file can contain compressed yet high-quality colour images, photographs, text, and drawings and can be saved in less space therefore, it's used on web as eBooks, manuals, newspapers, ancient documents, etc.

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    Text What is Text File Format

    A file with .TXT extension represents a text document that contains plain text in the form of lines. Paragraphs in a text document are recognized by carriage returns and are used for better arrangement of file contents. A standard text document can be opened in any text editor or word processing application on different operating systems. All the text contained in such a file is in human-readable format and represented by sequence of characters.

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