Dither DJVU images via Java
Build your own Java apps to Dither DJVU image files using server-side APIs
Aspose.Imaging for Java
Overview
How to Dither DJVU Files Using Java
Efficiently optimizing images for web placement is crucial for ensuring a smooth user experience. One approach to such optimization involves reducing the image’s color palette, thereby decreasing its file size and improving page load times. However, to prevent the disruption of smooth color gradients and the emergence of sharp boundaries in monochromatic areas, it’s essential to employ the image-smoothing function, known as dithering. This technique allows you to introduce a controlled amount of "noise" to an image or photograph, which, in turn, has a positive effect by smoothing out transitions within the color field and enhancing the image’s overall visual appeal. In order to Dither DJVU files, we’ll use Aspose.Imaging for Java API which is a feature-rich, powerful and easy to use image manipulation and conversion API for Java platform. You can download its latest version directly from Maven and install it within your Maven-based project by adding the following configurations to the pom.xml.
Repository
<repository>
<id>AsposeJavaAPI</id>
<name>Aspose Java API</name>
<url>https://repository.aspose.com/repo/</url>
</repository>
Dependency
<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-imaging</artifactId>
<version>version of aspose-imaging API</version>
<classifier>jdk16</classifier>
</dependency>
Steps to Dither DJVU via Java
You need the aspose-imaging-version-jdk16.jar to try the following workflow in your own environment.
- load DJVU files with Image.Load method;
- dither image;
- save dithered image to disc in the supported by Aspose.Imaging format.
System Requirements
Aspose.Imaging for Java is supported on all major operating systems. Just make sure that you have the following prerequisites.
- JDK 1.6 or higher is installed.
Dither DJVU images - Java
About Aspose.Imaging for Java API
Aspose.Imaging API is an image processing solution to create, modify, draw or convert images (photos) within applications. It offers: cross-platform Image processing, including but not limited to conversions between various image formats (including uniform multi-page or multi-frame image processing), modifications such as drawing, working with graphic primitives, transformations (resize, crop, flip&rotate, binarization, grayscale, adjust), advanced image manipulation features (filtering, dithering, masking, deskewing), and memory optimization strategies. It’s a standalone library and does not depend on any software for image operations. One can easily add high-performance image conversion features with native APIs within projects. These are 100% private on-premise APIs and images are processed at your servers.Dither DJVU via Online App
Dither DJVU documents by visiting our Live Demos website The live demo has the following benefits
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.
Read MoreOther Supported Dither Formats
Using Java, one can easily Dither different formats including: