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Aspose.Imaging  for Java
J2K

Compress J2K images via Java

Build your own Java apps to compress J2K files using server-side APIs

How to Compress J2K Files Using Java

Preparing images for publication involves both creative and technical aspects, including file compression. While high-resolution images are crucial for print or outdoor advertising, they might reduce web performance due to their large file size. The appropriate image compression technique varies depending on the purpose and publishing platform. Large files can slow down loading times, particularly on mobile connections, leading to a poor user experience. Users might abandon a site that takes too long to load and seek a faster alternative. Conversely, excessive image compression can result in blurriness and pixelation, degrading the viewing experience. The right choice of compression algorithms and ratios is essential to strike a balance between file size and image quality. In order to compress J2K 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 Compress J2K via Java

You need the aspose-imaging-version-jdk16.jar to try the following workflow in your own environment.

  • Load J2K files with Image.load method
  • Compress images;
  • Save compressed 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.
 

Compress J2K 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.

    Compress J2K via Online App

    Compress J2K documents by visiting our Live Demos website The live demo has the following benefits

      No need to download or setup anything
      No need to write any code
      Just upload your J2K files and hit "Compress now" button
      Instantly get the download link for the resultant file

    J2K What is J2K File Format

    A J2K file is an image that is compressed using the wavelet compression instead of DCT compression.

    Read More

    Other Supported Compress Formats

    Using Java, one can easily compress different formats including:

    APNG (Animated Portable Network Graphics)
    BMP (Bitmap Picture)
    ICO (Windows icon)
    JPG (Joint Photographic Experts Group)
    JPEG (Joint Photographic Experts Group)
    DIB (Device Independent Bitmap)
    DICOM (Digital Imaging & Communications)
    DJVU (Graphics Format)
    DNG (Digital Camera Image)
    EMF (Enhanced Metafile Format)
    EMZ (Windows Compressed Enhanced Metafile)
    GIF (Graphical Interchange Format)
    JP2 (JPEG 2000)
    PNG (Portable Network Graphics)
    TIFF (Tagged Image Format)
    TIF (Tagged Image Format)
    WEBP (Raster Web Image)
    WMF (Microsoft Windows Metafile)
    WMZ (Compressed Windows Media Player Skin)
    TGA (Targa Graphic)
    SVG (Scalable Vector Graphics)
    EPS (Encapsulated PostScript Language)
    CDR (Vector Drawing Image)
    CMX (Corel Exchange Image)
    OTG (OpenDocument Standard)
    ODG (Apache OpenOffice Draw Format)