Class CompressedFrameEncoder

java.lang.Object
com.pixelmed.dicom.CompressedFrameEncoder

public class CompressedFrameEncoder extends Object

The CompressedFrameEncoder class implements compression of specified frames in various supported Transfer Syntaxes, which can then be incorporated in DICOM encapsulated images.

  • Constructor Details

    • CompressedFrameEncoder

      public CompressedFrameEncoder()
  • Method Details

    • chooseOutputFormatForTransferSyntax

      public static String chooseOutputFormatForTransferSyntax(String transferSyntaxUID)

      Determine the output format string used by the JIIO codecs for the DICOM Transfer Syntax.

      Though not supported by the JIIO codecs, an output format string of "rle" is also recognized.

      Parameters:
      transferSyntaxUID - the DICOM Transfer Syntax UID
      Returns:
      the format string (lower case) or null if unrecognized
    • chooseTransferSyntaxForOutputFormat

      public static String chooseTransferSyntaxForOutputFormat(String outputFormat)

      Determine the DICOM Transfer Syntax for the output format string used by the JIIO codecs.

      Though not supported by the JIIO codecs, an output format string of "rle" is also recognized.

      Parameters:
      outputFormat - the format string (lower case)
      Returns:
      the DICOM Transfer Syntax UID or null if unrecognized
    • getCompressedFrameAsFile

      public static File getCompressedFrameAsFile(AttributeList list, BufferedImage renderedImage, String outputFormat, File tmpFrameFile) throws IOException, FileNotFoundException, DicomException

      Compress the supplied frame.

      Parameters:
      list - the AttributeList from which the frame was extracted
      renderedImage - the frame as an image
      outputFormat - the compression format to use [jpeg2000|jpeg-lossless|jpeg-ls|rle]
      tmpFrameFile - the file to write the compressed bit stream to
      Returns:
      the file written to, or null if compression failed
      Throws:
      IOException - if there is an error writing the file
      FileNotFoundException - if the supplied file path cannot be found
      DicomException - if the image cannot be compressed