java.awt.image.renderable.ParameterBlock#getObjectParameter()源码实例Demo

/** Creates an BinarizeOpImage with a given ParameterBlock */

  public RenderedImage create(ParameterBlock paramBlock, 
			      RenderingHints renderingHints)
  {
    RenderedImage img = paramBlock.getRenderedSource(0);

    ImageLayout il = new ImageLayout(img);
    ColorModel cm = new IndexColorModel(1, 2, bwColors, bwColors, bwColors);
    SampleModel sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
						     img.getWidth(),
						     img.getHeight(),
						     1);

    il.setColorModel(cm);
    il.setSampleModel(sm);

    return new BinarizeOpImage(paramBlock.getRenderedSource(0),
			       renderingHints,
			       il,
			       (Integer)paramBlock.getObjectParameter(0));
  }
 

/**
 * Creates a new instance of <code>QuicklookOlciOpImage</code> in the 
 * rendered layer. This operator could be called by chunks of images.
 * A set of additional information are required to compute the pixels 
 * adjustment such as sun azimuth/elevation and detectors... The methods to
 * extract these informations are also provided here before. 
 * 
 * @param paramBlock The three R/G/B sources images to be "Merged" together
 * to produce the Quicklook.
 * @param renderHints Optionally contains destination image layout.
 */
public RenderedImage create(ParameterBlock paramBlock, RenderingHints hints)
{
// Get ImageLayout from renderHints if any.
   ImageLayout layout = RIFUtil.getImageLayoutHint(hints);
   // Get the number of the sources
   int numSources = paramBlock.getNumSources();
   // Creation of a source ArrayList (better than a Vector)
   List<RenderedImage> sources = new ArrayList<RenderedImage>(numSources);

   // Addition of the sources to the List
   for (int i = 0; i < numSources; i++)
   {
      sources.add((RenderedImage)paramBlock.getSource(i));
   }
   
   // Extracts parameters
   short[][]  detectors = (short[][])paramBlock.getObjectParameter(0);
   double[][] sza = (double[][])paramBlock.getObjectParameter(1);
   float[][]  solar_flux = (float[][])paramBlock.getObjectParameter(2);
   PixelCorrection[]pc=(PixelCorrection[])paramBlock.getObjectParameter(3);
   int[]  bands = (int[])paramBlock.getObjectParameter(4);
   int[]  coefficients = (int[])paramBlock.getObjectParameter(5);
  
   return new QuicklookOlciOpImage(sources, hints, detectors, sza, 
      solar_flux, pc, bands, coefficients, layout);
}
 

/**
 * Creates a new instance of warp operator according to the warp object and interpolation method.
 *
 * @param paramBlock The warp and interpolation objects.
 */
@Override
public RenderedImage create(final ParameterBlock paramBlock, final RenderingHints renderHints) {
  final Interpolation interp = (Interpolation) paramBlock.getObjectParameter(1);
  if ((interp instanceof InterpolationNearest)
      || (interp instanceof javax.media.jai.InterpolationNearest)) {
    // Get ImageLayout from renderHints if any.
    final ImageLayout layout = RIFUtil.getImageLayoutHint(renderHints);

    RenderedImage source = paramBlock.getRenderedSource(0);
    final Warp warp = (Warp) paramBlock.getObjectParameter(0);
    final double[] backgroundValues = (double[]) paramBlock.getObjectParameter(2);

    ROI roi = null;
    final Object roi_ = paramBlock.getObjectParameter(3);
    if (roi_ instanceof ROI) {
      roi = (ROI) roi_;
      final PlanarImage temp = PlanarImage.wrapRenderedImage(source);
      temp.setProperty("ROI", roi);
      source = temp;
    }
    Range noData = (Range) paramBlock.getObjectParameter(4);
    noData = RangeFactory.convert(noData, source.getSampleModel().getDataType());
    return new WarpNearestOpImage(
        source,
        renderHints,
        layout,
        warp,
        interp,
        roi,
        noData,
        backgroundValues);
  }
  return super.create(paramBlock, renderHints);
}
 

/** Creates an RLSAOpImage with a given ParameterBlock */

  public RenderedImage create(ParameterBlock paramBlock, 
			      RenderingHints renderingHints)
  {
    return new SkeletonOpImage(paramBlock.getRenderedSource(0),
			       renderingHints,
			       new ImageLayout(paramBlock.getRenderedSource(0)),
			       (Boolean) paramBlock.getObjectParameter(0));
  }
 

/** Creates an PowerOpImage with a given ParameterBlock */

  public RenderedImage create(ParameterBlock paramBlock, 
			      RenderingHints renderingHints)
  {
    return new PowerOpImage(paramBlock.getRenderedSource(0),
			    renderingHints,
			    new ImageLayout(paramBlock.getRenderedSource(0)),
			    (Double) paramBlock.getObjectParameter(0));
  }
 

/** Invokes the operator with a given ParameterBlock */

  public RenderedImage create(ParameterBlock paramBlock, 
			      RenderingHints renderHints)
  {
    return new CCOpImage(paramBlock.getRenderedSource(0),
			 (Rectangle) paramBlock.getObjectParameter(0));
  }
 

/** Creates an RLSAOpImage with a given ParameterBlock */

  public RenderedImage create(ParameterBlock paramBlock, 
			      RenderingHints renderHints)
  {
    return new RLSAOpImage(paramBlock.getRenderedSource(0),
			   null,
			   new ImageLayout(paramBlock.getRenderedSource(0)),
			   (Integer) paramBlock.getObjectParameter(0),
			   (Integer) paramBlock.getObjectParameter(1));
  }
 

public RenderedImage create(ParameterBlock paramBlock, 
	      RenderingHints renderHints)
{
  if (!validateParameters(paramBlock)) { 
    return null;
  } 
  
  return new ProjectionProfileOpImage
    (paramBlock.getRenderedSource(0),
     (Rectangle) paramBlock.getObjectParameter(0));
}
 

public boolean validateParameters(ParameterBlock paramBlock) { 
  Object arg = paramBlock.getObjectParameter(0); 
  if (arg == null) { 
    return false; 
  } 
  if (!(arg instanceof Rectangle)) { 
    return false; 
  } 
  return true; 
}
 

/** Creates an RandomizeOpImage with a given ParameterBlock */

  public RenderedImage create(ParameterBlock paramBlock, 
			      RenderingHints renderingHints)
  {
    int width = ((Integer) paramBlock.getObjectParameter(0)).intValue();
    int height = ((Integer) paramBlock.getObjectParameter(1)).intValue();

    ImageLayout il = new ImageLayout(0, 0, width, height);

    int[] bits = { 8 };

    ColorModel cm = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_GRAY),
					    bits, false, false,
					    Transparency.OPAQUE,
					    DataBuffer.TYPE_BYTE);

    int[] bandoffsets = { 0 };
    
    SampleModel sm = new ComponentSampleModel(DataBuffer.TYPE_BYTE,
					      width, height, 1, width,
					      bandoffsets);


    il.setColorModel(cm);
    il.setSampleModel(sm);

    return new RandomizeOpImage(il, renderingHints, (Double) paramBlock.getObjectParameter(2));
  }
 

/**
 * Should create a new instance of <code>QuicklookSlstrOpImage</code> in the 
 * rendered layer.
 * This operator could be called by chunks of images.
 * A set of additional information are required to compute the pixels 
 * adjustment such as sun azimuth/elevation and detectors... The methods to
 * extract these informations are also provided here before. 
 * 
 * @param paramBlock The three R/G/B sources images to be "Merged" together
 * to produce the Quicklook.
 * @param renderHints Optionally contains destination image layout.
 */
public RenderedImage create(ParameterBlock paramBlock, RenderingHints hints)
{
   long start = System.currentTimeMillis();
   RenderedImage computed_image=null;
   
   DrbImage red = (DrbImage)paramBlock.getSource(4); // S5
   DrbImage green = (DrbImage)paramBlock.getSource(2); // S3
   DrbImage blue = (DrbImage)paramBlock.getSource(1); // S2

   PixelCorrection[]pc=(PixelCorrection[])paramBlock.getObjectParameter(0);
   PixelCorrection red_correction = pc!=null?pc[0]:null;
   PixelCorrection green_correction = pc!=null?pc[1]:null;
   PixelCorrection blue_correction = pc!=null?pc[2]:null;
   
   try
   {
      computed_image = naturalColors (red.getData(), red_correction ,
         green.getData(), green_correction, blue.getData(), blue_correction);
   }
   catch (Exception e)
   {
      // Image access problem: try to reprocess this other bands
      LOGGER.info("Natural color band looks bad. Trying S8...");
      DrbImage image = (DrbImage)paramBlock.getSource(7); // S8
      PixelCorrection corr = pc!=null?pc[3]:null;
      try
      {
         computed_image = grayScaleBand(image.getData(), corr, true);
      }
      catch (Exception e1)
      {
         // S8 also bad band: try with S9...
         LOGGER.info("Thermal band S8 looks bad. Trying S9...");
         image = (DrbImage)paramBlock.getSource(8); // S9
         corr = pc!=null?pc[4]:null;
         try
         {
            computed_image = grayScaleBand(image.getData(), corr, false);
         }
         catch (Exception e2)
         {
            throw new UnsupportedOperationException(
               "Image cannot be processed (" + e1.getMessage() + ").", e2);
         }
      }
   }
   
   LOGGER.info("Quicklook generated in " + 
      (System.currentTimeMillis() - start)/1000+" secs");
   
   return computed_image;
}