How to use

DicomImageReadParam

in

org.dcm4che3.imageio.plugins.dcm

@Override
public ImageReadParam getDefaultReadParam() {
  return new DicomImageReadParam();
}

private ImageReadParam readParam() {
  DicomImageReadParam param =
      (DicomImageReadParam) imageReader.getDefaultReadParam();
  param.setWindowCenter(windowCenter);
  param.setWindowWidth(windowWidth);
  param.setAutoWindowing(autoWindowing);
  param.setWindowIndex(windowIndex);
  param.setVOILUTIndex(voiLUTIndex);
  param.setPreferWindow(preferWindow);
  param.setPresentationState(prState);
  param.setOverlayActivationMask(overlayActivationMask);
  param.setOverlayGrayscaleValue(overlayGrayscaleValue);
  return param;
}

DicomImageReadParam param = 
  (DicomImageReadParam) reader.getDefaultReadParam();
param.setWindowCenter(center);
param.setWindowWidth(width);
param.setVoiLutFunction(vlutFct);
param.setPresentationState(prState);
param.setPValue2Gray(pval2gray);
param.setAutoWindowing(autoWindowing);
ImageInputStream iis = ImageIO.createImageInputStream(src);
BufferedImage bi;

DicomImageReadParam dParam = param instanceof DicomImageReadParam
    ? (DicomImageReadParam) param
    : new DicomImageReadParam();
Attributes psAttrs = dParam.getPresentationState();
if (psAttrs != null) {
  lutParam.setModalityLUT(psAttrs);
      selectFctGroup(imgAttrs, sharedFctGroups, frameFctGroups,
          Tag.PixelValueTransformationSequence));
  if (dParam.getWindowWidth() != 0) {
    lutParam.setWindowCenter(dParam.getWindowCenter());
    lutParam.setWindowWidth(dParam.getWindowWidth());
  } else
    lutParam.setVOI(
      selectFctGroup(imgAttrs, sharedFctGroups, frameFctGroups,
          Tag.FrameVOILUTSequence),
      dParam.getWindowIndex(),
      dParam.getVOILUTIndex(),
      dParam.isPreferWindow());
  if (dParam.isAutoWindowing())
    lutParam.autoWindowing(imgAttrs, raster);
  lutParam.setPresentationLUT(imgAttrs);

private int[] getActiveOverlayGroupOffsets(ImageReadParam param) {
  if (param instanceof DicomImageReadParam) {
    DicomImageReadParam dParam = (DicomImageReadParam) param;
    Attributes psAttrs = dParam.getPresentationState();
    if (psAttrs != null)
      return Overlays.getActiveOverlayGroupOffsets(psAttrs);
    else
      return Overlays.getActiveOverlayGroupOffsets(
          metadata.getAttributes(),
          dParam.getOverlayActivationMask());
  }
  return Overlays.getActiveOverlayGroupOffsets(
      metadata.getAttributes(),
      0xffff);
}

private void applyOverlay(int gg0000, WritableRaster raster,
    int frameIndex, ImageReadParam param, int outBits, byte[] ovlyData) {
  Attributes ovlyAttrs = metadata.getAttributes();
  int grayscaleValue = 0xffff;
  if (param instanceof DicomImageReadParam) {
    DicomImageReadParam dParam = (DicomImageReadParam) param;
    Attributes psAttrs = dParam.getPresentationState();
    if (psAttrs != null) {
      if (psAttrs.containsValue(Tag.OverlayData | gg0000))
        ovlyAttrs = psAttrs;
      grayscaleValue = Overlays.getRecommendedDisplayGrayscaleValue(
          psAttrs, gg0000);
    } else
      grayscaleValue = dParam.getOverlayGrayscaleValue();
  }
  Overlays.applyOverlay(ovlyData != null ? 0 : frameIndex, raster,
      ovlyAttrs, gg0000, grayscaleValue >>> (16-outBits), ovlyData);
}

DicomImageReadParam param = 
  (DicomImageReadParam) reader.getDefaultReadParam();
param.setWindowCenter(center);
param.setWindowWidth(width);
param.setVoiLutFunction(vlutFct);
param.setPresentationState(prState);
param.setPValue2Gray(pval2gray);
param.setAutoWindowing(autoWindowing);
ImageInputStream iis = ImageIO.createImageInputStream(src);
BufferedImage bi;

@Override
public ImageReadParam getDefaultReadParam() {
  return new DicomImageReadParam();
}