Aspose.OCR for Java
Overview
processes scanned images or even smartphone photos in GIF format and creates GIF 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 GIF image to PDF document:
- Create an instance of AsposeOcr class
- Call AsposeOCR.RecognizePage method
- Pass the GIF file path as parameter
- AsposeOCR.RecognizePage returns a String or file of PDF 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);
GIF What is GIF File Format
A GIF or Graphical Interchange Format is a type of highly compressed image. Owned by Unisys, GIF uses the LZW compression algorithm that does not degrade the image quality. For each image GIF typically allow up to 8 bits per pixel and up to 256 colours are allowed across the image. In contrast to a JPEG image, which can display up to 16 million colours and fairly touches the limits of the human eye. Back when the internet emerged, GIFs remained the best choice because they required low bandwidth and compatible for the graphics that consume solid areas of colour. An animated GIF combines numerous images or frames into a single file and displays them in a sequence to generate an animated clip or a short video. The colour limitations are up to 256 for each frame and are likely to be the least suitable for reproducing other images and photographs with colour gradient.
Read MorePDF What is PDF File Format
Portable Document Format (PDF) is a type of document created by Adobe back in 1990s. The purpose of this file format was to introduce a standard for representation of documents and other reference material in a format that is independent of application software, hardware as well as Operating System. The PDF file format has full capability to contain information like text, images, hyperlinks, form-fields, rich media, digital signatures, attachments, metadata, Geospatial features and 3D objects in it that can become as part of source document.
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