Convert DNG to J2K via Java
Transform DNG into J2K using native Java APIs without needing any image editor or 3rd-party libraries.
How to Convert DNG to J2K Using Java
Converting file formats may seem like a routine task encountered by graphic designers. Yet, underestimating its significance would be a mistake. The evaluation of your work might depend on how swiftly and effectively you tackle this task. Typically, original images need conversion into formats better suited for printing or online publication. If the original image originates from a graphic editor, it might be in vector format. In this scenario, it must be rasterized and converted to a raster format for publishing purposes. You have the choice to save the image in an uncompressed format for optimal quality or convert it to a lossless compressed format to reduce file size. In certain contexts, like web publishing, you can opt for lossy compressed formats. Specially designed algorithms for image data compression permit a significant reduction in file size while preserving acceptable image quality. This facilitates fast image file downloads from the internet. In order to convert DNG to J2K, 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 Convert DNG to J2K via Java
Developers can easily load & convert DNG files to J2K in just a few lines of code.
- Load DNG file with Image.load method
- Create & set the instance of required subclass of ImageOptionsBase (e.g. BmpOptions, PngOptions, etc.)
- Call the Image.save method
- Pass file path with J2K extension & object of ImageOptionsBase class
System Requirements
Before running the conversion example code, make sure that you have the following prerequisites:
- Operating system: Windows or Linux.
- Development environment: Supports .NET Core 7 and higher, such as Microsoft Visual Studio.
Free App to Convert DNG to J2K
- Select or drag and drop DNG image
- Choose format and click Convert button
- Click Download button to download J2K image
Check our live demos to convert DNG to J2K
Convert DNG to J2K - Java
import com.aspose.imaging.Image; | |
import com.aspose.imaging.ImageOptionsBase; | |
import com.aspose.imaging.fileformats.jpeg2000.Jpeg2000Codec; | |
import com.aspose.imaging.fileformats.png.PngColorType; | |
import com.aspose.imaging.fileformats.tiff.enums.TiffExpectedFormat; | |
import com.aspose.imaging.imageoptions.*; | |
//This example demonstrates how to convert all supported file formats from one to another | |
String templatesFolder = "D:\\WorkDir\\"; | |
//Formats that support both - save and load | |
HashMap<String, ImageOptionsBase> formatsThatSupportExportAndImport = new HashMap<String, ImageOptionsBase>(); | |
formatsThatSupportExportAndImport.put("bmp", new BmpOptions()); | |
formatsThatSupportExportAndImport.put("gif", new GifOptions()); | |
formatsThatSupportExportAndImport.put("dicom", new DicomOptions()); | |
formatsThatSupportExportAndImport.put("emf", new EmfOptions()); | |
formatsThatSupportExportAndImport.put("jpg", new JpegOptions()); | |
formatsThatSupportExportAndImport.put("jpeg", new JpegOptions()); | |
formatsThatSupportExportAndImport.put("jpeg2000", new Jpeg2000Options() ); | |
formatsThatSupportExportAndImport.put("j2k", new Jpeg2000Options() {{ setCodec(Jpeg2000Codec.J2K); }} ); | |
formatsThatSupportExportAndImport.put("jp2", new Jpeg2000Options() {{ setCodec(Jpeg2000Codec.Jp2); }} ); | |
formatsThatSupportExportAndImport.put("png",new PngOptions() {{ setColorType(PngColorType.TruecolorWithAlpha); }}); | |
formatsThatSupportExportAndImport.put("apng", new ApngOptions()); | |
formatsThatSupportExportAndImport.put("svg", new SvgOptions()); | |
formatsThatSupportExportAndImport.put("tiff", new TiffOptions(TiffExpectedFormat.Default)); | |
formatsThatSupportExportAndImport.put("tif", new TiffOptions(TiffExpectedFormat.Default)); | |
formatsThatSupportExportAndImport.put("wmf", new WmfOptions()); | |
formatsThatSupportExportAndImport.put("emz", new EmfOptions() {{ setCompress(true); }}); | |
formatsThatSupportExportAndImport.put("wmz", new WmfOptions() {{ setCompress(true); }}); | |
formatsThatSupportExportAndImport.put("svgz", new SvgOptions(){{ setCompress(true); }}); | |
formatsThatSupportExportAndImport.put("tga", new TgaOptions()); | |
formatsThatSupportExportAndImport.put("webp", new WebPOptions()); | |
formatsThatSupportExportAndImport.put("ico", new IcoOptions()); | |
//Formats that can be only saved | |
HashMap<String, ImageOptionsBase> formatsOnlyForExport = new HashMap<String, ImageOptionsBase>(); | |
formatsOnlyForExport.put("psd", new PsdOptions()); | |
formatsOnlyForExport.put("dxf", new DxfOptions() {{ setTextAsLines(true); setConvertTextBeziers(true); }} ); | |
formatsOnlyForExport.put("pdf", new PdfOptions()); | |
formatsOnlyForExport.put("html", new Html5CanvasOptions()); | |
//Formats that can be only loaded | |
List<String> formatsOnlyForImport = Arrays.asList("djvu", "dng", "dib", "eps", "cdr", "cmx", "otg", "odg"); | |
//Get total formats that can be saved | |
HashMap<String, ImageOptionsBase> exportToFormats = new HashMap<String, ImageOptionsBase>(formatsOnlyForExport); | |
exportToFormats.putAll(formatsThatSupportExportAndImport); | |
//Get total formats that can be loaded | |
List<String> importFormats = new LinkedList<>(formatsOnlyForImport); | |
importFormats.addAll(formatsThatSupportExportAndImport.keySet()); | |
importFormats.forEach((formatExt) -> { | |
String inputFile = templatesFolder + "template." + formatExt; | |
for (Map.Entry<String, ImageOptionsBase> exportFormat : exportToFormats.entrySet()) | |
{ | |
String outputFile = String.format("%s\\%s\\%s-%s-to-%s.%s", templatesFolder, "convert", "convert-", formatExt, exportFormat.getKey(), exportFormat.getKey()); | |
System.out.println(outputFile); | |
// More about load method can be found at | |
// https://apireference.aspose.com/imaging/java/com.aspose.imaging/Image#load-java.lang.String- | |
try (Image image = Image.load(inputFile)) | |
{ | |
ImageOptionsBase exportOptions = exportFormat.getValue().deepClone(); | |
if ((formatExt.equals("emf") || formatExt.equals("emz")) && (exportFormat.getValue() instanceof WmfOptions)) | |
{ | |
EmfRasterizationOptions rasterizationOptions = new EmfRasterizationOptions(); | |
rasterizationOptions.setPageWidth(image.getWidth()); | |
rasterizationOptions.setPageHeight(image.getHeight()); | |
exportOptions.setVectorRasterizationOptions(rasterizationOptions); | |
} | |
image.save(outputFile, exportOptions); | |
} | |
} | |
}); |
DNG What is DNG File Format
DNG is a digital camera image format used for the storage of raw files. It has been developed by Adobe in September 2004. It was basically developed for digital photography. DNG is an extension of TIFF/EP standard format and uses metadata significantly. In order to manipulate raw data from digital cameras with ease of flexibility and artistic control, photographers opt camera raw files. JPEG and TIFF formats store images that are processed by the camera, therefore not much room for alteration is available in such formats.
Read More | DNGJ2K What is J2K File Format
A J2K file is an image that is compressed using the wavelet compression instead of DCT compression.
Read More | J2KOther Supported Conversions
Using Java, one can easily convert different formats including: