Crop DJVU images via Java
Build your own Java apps to crop DJVU image or photo files using server-side APIs
Aspose.Imaging for Java
Overview
How to Crop DJVU Image Files Using Java
To instantly captivate a user visiting your web page, position attention-grabbing elements at the center of the images. Sometimes, it’s more effective to eliminate entirely any unnecessary elements that distract from the primary theme of the photo. To accomplish this, utilize the image cropping function provided by Java library. You can achieve this by specifying the coordinates of a rectangular area encompassing the focal point or by indicating shifts from the edges of the photo to select the essential portion of the image. In this way, through cropping the image, we eliminate irrelevant elements and emphasize the main subject. In order to crop 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 Crop 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
- Cropping images
- Save the cropped 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.
Crop 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.Crop DJVU images via Online App
Crop DJVU images 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 Crop Image Formats
Using Java, you can easily crop different image formats including: