Java Code Examples for java.awt.image.RenderedImage#getSampleModel()

private boolean needToCreateIndex(RenderedImage image) {

        SampleModel sampleModel = image.getSampleModel();
        ColorModel colorModel = image.getColorModel();

        return sampleModel.getNumBands() != 1 ||
            sampleModel.getSampleSize()[0] > 8 ||
            colorModel.getComponentSize()[0] > 8;
    }
 

private boolean needToCreateIndex(RenderedImage image) {

        SampleModel sampleModel = image.getSampleModel();
        ColorModel colorModel = image.getColorModel();

        return sampleModel.getNumBands() != 1 ||
            sampleModel.getSampleSize()[0] > 8 ||
            colorModel.getComponentSize()[0] > 8;
    }
 

private boolean needToCreateIndex(RenderedImage image) {

        SampleModel sampleModel = image.getSampleModel();
        ColorModel colorModel = image.getColorModel();

        return sampleModel.getNumBands() != 1 ||
            sampleModel.getSampleSize()[0] > 8 ||
            colorModel.getComponentSize()[0] > 8;
    }
 

private boolean needToCreateIndex(RenderedImage image) {

        SampleModel sampleModel = image.getSampleModel();
        ColorModel colorModel = image.getColorModel();

        return sampleModel.getNumBands() != 1 ||
            sampleModel.getSampleSize()[0] > 8 ||
            colorModel.getComponentSize()[0] > 8;
    }
 

private boolean needToCreateIndex(RenderedImage image) {

        SampleModel sampleModel = image.getSampleModel();
        ColorModel colorModel = image.getColorModel();

        return sampleModel.getNumBands() != 1 ||
            sampleModel.getSampleSize()[0] > 8 ||
            colorModel.getComponentSize()[0] > 8;
    }
 

private boolean needToCreateIndex(RenderedImage image) {

        SampleModel sampleModel = image.getSampleModel();
        ColorModel colorModel = image.getColorModel();

        return sampleModel.getNumBands() != 1 ||
            sampleModel.getSampleSize()[0] > 8 ||
            colorModel.getComponentSize()[0] > 8;
    }
 

/**
 * Returns whether the image has contiguous data across rows.
 */
public static final boolean imageIsContiguous(RenderedImage image) {
    SampleModel sm;
    if(image instanceof BufferedImage) {
        WritableRaster ras = ((BufferedImage)image).getRaster();
        sm = ras.getSampleModel();
    } else {
        sm = image.getSampleModel();
    }

    if (sm instanceof ComponentSampleModel) {
        // Ensure image rows samples are stored contiguously
        // in a single bank.
        ComponentSampleModel csm = (ComponentSampleModel)sm;

        if (csm.getPixelStride() != csm.getNumBands()) {
            return false;
        }

        int[] bandOffsets = csm.getBandOffsets();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bandOffsets[i] != i) {
                return false;
            }
        }

        int[] bankIndices = csm.getBankIndices();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bankIndices[i] != 0) {
                return false;
            }
        }

        return true;
    }

    // Otherwise true if and only if it's a bilevel image with
    // a MultiPixelPackedSampleModel, 1 bit per pixel, and 1 bit
    // pixel stride.
    return ImageUtil.isBinary(sm);
}
 

/**
 * Returns whether the image has contiguous data across rows.
 */
public static final boolean imageIsContiguous(RenderedImage image) {
    SampleModel sm;
    if(image instanceof BufferedImage) {
        WritableRaster ras = ((BufferedImage)image).getRaster();
        sm = ras.getSampleModel();
    } else {
        sm = image.getSampleModel();
    }

    if (sm instanceof ComponentSampleModel) {
        // Ensure image rows samples are stored contiguously
        // in a single bank.
        ComponentSampleModel csm = (ComponentSampleModel)sm;

        if (csm.getPixelStride() != csm.getNumBands()) {
            return false;
        }

        int[] bandOffsets = csm.getBandOffsets();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bandOffsets[i] != i) {
                return false;
            }
        }

        int[] bankIndices = csm.getBankIndices();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bankIndices[i] != 0) {
                return false;
            }
        }

        return true;
    }

    // Otherwise true if and only if it's a bilevel image with
    // a MultiPixelPackedSampleModel, 1 bit per pixel, and 1 bit
    // pixel stride.
    return ImageUtil.isBinary(sm);
}
 

/**
 * Constructs a WarpNearestOpImage.
 *
 * @param source The source image.
 * @param config RenderingHints used in calculations.
 * @param layout The destination image layout.
 * @param warp An object defining the warp algorithm.
 * @param interp An object describing the interpolation method.
 * @param roi input ROI object used.
 * @param noData NoData Range object used for checking if NoData are present.
 */
public WarpNearestOpImage(
    final RenderedImage source,
    final Map<?, ?> config,
    final ImageLayout layout,
    final Warp warp,
    final Interpolation interp,
    final ROI sourceROI,
    final Range noData,
    final double[] bkg) {
  super(
      source,
      layout,
      config,
      false,
      null, // extender not needed in
      // nearest-neighbor
      // interpolation
      interp,
      warp,
      bkg,
      sourceROI,
      noData);

  /*
   * If the source has IndexColorModel, override the default setting in OpImage. The dest shall
   * have exactly the same SampleModel and ColorModel as the source. Note, in this case, the
   * source should have an integral data type.
   */
  final ColorModel srcColorModel = source.getColorModel();
  if (srcColorModel instanceof IndexColorModel) {
    sampleModel = source.getSampleModel().createCompatibleSampleModel(tileWidth, tileHeight);
    colorModel = srcColorModel;
  }

  /*
   * Selection of a destinationNoData value for each datatype
   */
  final SampleModel sm = source.getSampleModel();
  // Source image data Type
  final int srcDataType = sm.getDataType();

  // Creation of a lookuptable containing the values to use for no data
  if ((srcDataType == DataBuffer.TYPE_BYTE) && hasNoData) {
    final int numBands = getNumBands();
    byteLookupTable = new byte[numBands][256];
    for (int b = 0; b < numBands; b++) {
      for (int i = 0; i < byteLookupTable[0].length; i++) {
        final byte value = (byte) i;
        if (noDataRange.contains(value)) {
          byteLookupTable[b][i] = (byte) backgroundValues[b];
        } else {
          byteLookupTable[b][i] = value;
        }
      }
    }
  }
}
 

/**
 * Returns whether the image has contiguous data across rows.
 */
public static final boolean imageIsContiguous(RenderedImage image) {
    SampleModel sm;
    if(image instanceof BufferedImage) {
        WritableRaster ras = ((BufferedImage)image).getRaster();
        sm = ras.getSampleModel();
    } else {
        sm = image.getSampleModel();
    }

    if (sm instanceof ComponentSampleModel) {
        // Ensure image rows samples are stored contiguously
        // in a single bank.
        ComponentSampleModel csm = (ComponentSampleModel)sm;

        if (csm.getPixelStride() != csm.getNumBands()) {
            return false;
        }

        int[] bandOffsets = csm.getBandOffsets();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bandOffsets[i] != i) {
                return false;
            }
        }

        int[] bankIndices = csm.getBankIndices();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bankIndices[i] != 0) {
                return false;
            }
        }

        return true;
    }

    // Otherwise true if and only if it's a bilevel image with
    // a MultiPixelPackedSampleModel, 1 bit per pixel, and 1 bit
    // pixel stride.
    return ImageUtil.isBinary(sm);
}
 

/**
 * Writes any extension blocks, the Image Descriptor, and the image data
 *
 * @param iioimage The image and image metadata.
 * @param param The write parameters.
 * @param globalColorTable The Global Color Table.
 * @param sourceBounds The source region.
 * @param destSize The destination dimensions.
 */
private void writeImage(RenderedImage image,
                        GIFWritableImageMetadata imageMetadata,
                        ImageWriteParam param, byte[] globalColorTable,
                        Rectangle sourceBounds, Dimension destSize)
  throws IOException {
    ColorModel colorModel = image.getColorModel();
    SampleModel sampleModel = image.getSampleModel();

    boolean writeGraphicsControlExtension;
    if (imageMetadata == null) {
        // Create default metadata.
        imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
            new ImageTypeSpecifier(image), param);

        // Set GraphicControlExtension flag only if there is
        // transparency.
        writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
    } else {
        // Check for GraphicControlExtension element.
        NodeList list = null;
        try {
            IIOMetadataNode root = (IIOMetadataNode)
                imageMetadata.getAsTree(IMAGE_METADATA_NAME);
            list = root.getElementsByTagName("GraphicControlExtension");
        } catch(IllegalArgumentException iae) {
            // Should never happen.
        }

        // Set GraphicControlExtension flag if element present.
        writeGraphicsControlExtension =
            list != null && list.getLength() > 0;

        // If progressive mode is not MODE_COPY_FROM_METADATA, ensure
        // the interlacing is set per the ImageWriteParam mode setting.
        if (param != null && param.canWriteProgressive()) {
            if (param.getProgressiveMode() ==
                ImageWriteParam.MODE_DISABLED) {
                imageMetadata.interlaceFlag = false;
            } else if (param.getProgressiveMode() ==
                       ImageWriteParam.MODE_DEFAULT) {
                imageMetadata.interlaceFlag = true;
            }
        }
    }

    // Unset local color table if equal to global color table.
    if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
        imageMetadata.localColorTable = null;
    }

    // Override dimensions
    imageMetadata.imageWidth = destSize.width;
    imageMetadata.imageHeight = destSize.height;

    // Write Graphics Control Extension.
    if (writeGraphicsControlExtension) {
        writeGraphicControlExtension(imageMetadata);
    }

    // Write extension blocks.
    writePlainTextExtension(imageMetadata);
    writeApplicationExtension(imageMetadata);
    writeCommentExtension(imageMetadata);

    // Write Image Descriptor
    int bitsPerPixel =
        getNumBits(imageMetadata.localColorTable == null ?
                   (globalColorTable == null ?
                    sampleModel.getSampleSize(0) :
                    globalColorTable.length/3) :
                   imageMetadata.localColorTable.length/3);
    writeImageDescriptor(imageMetadata, bitsPerPixel);

    // Write image data
    writeRasterData(image, sourceBounds, destSize,
                    param, imageMetadata.interlaceFlag);
}
 

/**
 * Writes any extension blocks, the Image Descriptor, and the image data
 *
 * @param iioimage The image and image metadata.
 * @param param The write parameters.
 * @param globalColorTable The Global Color Table.
 * @param sourceBounds The source region.
 * @param destSize The destination dimensions.
 */
private void writeImage(RenderedImage image,
                        GIFWritableImageMetadata imageMetadata,
                        ImageWriteParam param, byte[] globalColorTable,
                        Rectangle sourceBounds, Dimension destSize)
  throws IOException {
    ColorModel colorModel = image.getColorModel();
    SampleModel sampleModel = image.getSampleModel();

    boolean writeGraphicsControlExtension;
    if (imageMetadata == null) {
        // Create default metadata.
        imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
            new ImageTypeSpecifier(image), param);

        // Set GraphicControlExtension flag only if there is
        // transparency.
        writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
    } else {
        // Check for GraphicControlExtension element.
        NodeList list = null;
        try {
            IIOMetadataNode root = (IIOMetadataNode)
                imageMetadata.getAsTree(IMAGE_METADATA_NAME);
            list = root.getElementsByTagName("GraphicControlExtension");
        } catch(IllegalArgumentException iae) {
            // Should never happen.
        }

        // Set GraphicControlExtension flag if element present.
        writeGraphicsControlExtension =
            list != null && list.getLength() > 0;

        // If progressive mode is not MODE_COPY_FROM_METADATA, ensure
        // the interlacing is set per the ImageWriteParam mode setting.
        if (param != null && param.canWriteProgressive()) {
            if (param.getProgressiveMode() ==
                ImageWriteParam.MODE_DISABLED) {
                imageMetadata.interlaceFlag = false;
            } else if (param.getProgressiveMode() ==
                       ImageWriteParam.MODE_DEFAULT) {
                imageMetadata.interlaceFlag = true;
            }
        }
    }

    // Unset local color table if equal to global color table.
    if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
        imageMetadata.localColorTable = null;
    }

    // Override dimensions
    imageMetadata.imageWidth = destSize.width;
    imageMetadata.imageHeight = destSize.height;

    // Write Graphics Control Extension.
    if (writeGraphicsControlExtension) {
        writeGraphicControlExtension(imageMetadata);
    }

    // Write extension blocks.
    writePlainTextExtension(imageMetadata);
    writeApplicationExtension(imageMetadata);
    writeCommentExtension(imageMetadata);

    // Write Image Descriptor
    int bitsPerPixel =
        getNumBits(imageMetadata.localColorTable == null ?
                   (globalColorTable == null ?
                    sampleModel.getSampleSize(0) :
                    globalColorTable.length/3) :
                   imageMetadata.localColorTable.length/3);
    writeImageDescriptor(imageMetadata, bitsPerPixel);

    // Write image data
    writeRasterData(image, sourceBounds, destSize,
                    param, imageMetadata.interlaceFlag);
}
 

/**
 * Returns whether the image has contiguous data across rows.
 */
public static final boolean imageIsContiguous(RenderedImage image) {
    SampleModel sm;
    if(image instanceof BufferedImage) {
        WritableRaster ras = ((BufferedImage)image).getRaster();
        sm = ras.getSampleModel();
    } else {
        sm = image.getSampleModel();
    }

    if (sm instanceof ComponentSampleModel) {
        // Ensure image rows samples are stored contiguously
        // in a single bank.
        ComponentSampleModel csm = (ComponentSampleModel)sm;

        if (csm.getPixelStride() != csm.getNumBands()) {
            return false;
        }

        int[] bandOffsets = csm.getBandOffsets();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bandOffsets[i] != i) {
                return false;
            }
        }

        int[] bankIndices = csm.getBankIndices();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bankIndices[i] != 0) {
                return false;
            }
        }

        return true;
    }

    // Otherwise true if and only if it's a bilevel image with
    // a MultiPixelPackedSampleModel, 1 bit per pixel, and 1 bit
    // pixel stride.
    return ImageUtil.isBinary(sm);
}
 

/**
 * Returns whether the image has contiguous data across rows.
 */
public static final boolean imageIsContiguous(RenderedImage image) {
    SampleModel sm;
    if(image instanceof BufferedImage) {
        WritableRaster ras = ((BufferedImage)image).getRaster();
        sm = ras.getSampleModel();
    } else {
        sm = image.getSampleModel();
    }

    if (sm instanceof ComponentSampleModel) {
        // Ensure image rows samples are stored contiguously
        // in a single bank.
        ComponentSampleModel csm = (ComponentSampleModel)sm;

        if (csm.getPixelStride() != csm.getNumBands()) {
            return false;
        }

        int[] bandOffsets = csm.getBandOffsets();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bandOffsets[i] != i) {
                return false;
            }
        }

        int[] bankIndices = csm.getBankIndices();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bankIndices[i] != 0) {
                return false;
            }
        }

        return true;
    }

    // Otherwise true if and only if it's a bilevel image with
    // a MultiPixelPackedSampleModel, 1 bit per pixel, and 1 bit
    // pixel stride.
    return ImageUtil.isBinary(sm);
}
 

/**
 * Returns whether the image has contiguous data across rows.
 */
public static final boolean imageIsContiguous(RenderedImage image) {
    SampleModel sm;
    if(image instanceof BufferedImage) {
        WritableRaster ras = ((BufferedImage)image).getRaster();
        sm = ras.getSampleModel();
    } else {
        sm = image.getSampleModel();
    }

    if (sm instanceof ComponentSampleModel) {
        // Ensure image rows samples are stored contiguously
        // in a single bank.
        ComponentSampleModel csm = (ComponentSampleModel)sm;

        if (csm.getPixelStride() != csm.getNumBands()) {
            return false;
        }

        int[] bandOffsets = csm.getBandOffsets();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bandOffsets[i] != i) {
                return false;
            }
        }

        int[] bankIndices = csm.getBankIndices();
        for (int i = 0; i < bandOffsets.length; i++) {
            if (bankIndices[i] != 0) {
                return false;
            }
        }

        return true;
    }

    // Otherwise true if and only if it's a bilevel image with
    // a MultiPixelPackedSampleModel, 1 bit per pixel, and 1 bit
    // pixel stride.
    return ImageUtil.isBinary(sm);
}
 

/**
 * Writes any extension blocks, the Image Descriptor, and the image data
 *
 * @param iioimage The image and image metadata.
 * @param param The write parameters.
 * @param globalColorTable The Global Color Table.
 * @param sourceBounds The source region.
 * @param destSize The destination dimensions.
 */
private void writeImage(RenderedImage image,
                        GIFWritableImageMetadata imageMetadata,
                        ImageWriteParam param, byte[] globalColorTable,
                        Rectangle sourceBounds, Dimension destSize)
  throws IOException {
    ColorModel colorModel = image.getColorModel();
    SampleModel sampleModel = image.getSampleModel();

    boolean writeGraphicsControlExtension;
    if (imageMetadata == null) {
        // Create default metadata.
        imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
            new ImageTypeSpecifier(image), param);

        // Set GraphicControlExtension flag only if there is
        // transparency.
        writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
    } else {
        // Check for GraphicControlExtension element.
        NodeList list = null;
        try {
            IIOMetadataNode root = (IIOMetadataNode)
                imageMetadata.getAsTree(IMAGE_METADATA_NAME);
            list = root.getElementsByTagName("GraphicControlExtension");
        } catch(IllegalArgumentException iae) {
            // Should never happen.
        }

        // Set GraphicControlExtension flag if element present.
        writeGraphicsControlExtension =
            list != null && list.getLength() > 0;

        // If progressive mode is not MODE_COPY_FROM_METADATA, ensure
        // the interlacing is set per the ImageWriteParam mode setting.
        if (param != null && param.canWriteProgressive()) {
            if (param.getProgressiveMode() ==
                ImageWriteParam.MODE_DISABLED) {
                imageMetadata.interlaceFlag = false;
            } else if (param.getProgressiveMode() ==
                       ImageWriteParam.MODE_DEFAULT) {
                imageMetadata.interlaceFlag = true;
            }
        }
    }

    // Unset local color table if equal to global color table.
    if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
        imageMetadata.localColorTable = null;
    }

    // Override dimensions
    imageMetadata.imageWidth = destSize.width;
    imageMetadata.imageHeight = destSize.height;

    // Write Graphics Control Extension.
    if (writeGraphicsControlExtension) {
        writeGraphicControlExtension(imageMetadata);
    }

    // Write extension blocks.
    writePlainTextExtension(imageMetadata);
    writeApplicationExtension(imageMetadata);
    writeCommentExtension(imageMetadata);

    // Write Image Descriptor
    int bitsPerPixel =
        getNumBits(imageMetadata.localColorTable == null ?
                   (globalColorTable == null ?
                    sampleModel.getSampleSize(0) :
                    globalColorTable.length/3) :
                   imageMetadata.localColorTable.length/3);
    writeImageDescriptor(imageMetadata, bitsPerPixel);

    // Write image data
    writeRasterData(image, sourceBounds, destSize,
                    param, imageMetadata.interlaceFlag);
}
 

/**
 * Constructs an <code>ImageTypeSpecifier</code> from a
 * <code>RenderedImage</code>.  If a <code>BufferedImage</code> is
 * being used, one of the factory methods
 * <code>createFromRenderedImage</code> or
 * <code>createFromBufferedImageType</code> should be used instead in
 * order to get a more accurate result.
 *
 * @param image a <code>RenderedImage</code>.
 *
 * @exception IllegalArgumentException if the argument is
 * <code>null</code>.
 */
public ImageTypeSpecifier(RenderedImage image) {
    if (image == null) {
        throw new IllegalArgumentException("image == null!");
    }
    colorModel = image.getColorModel();
    sampleModel = image.getSampleModel();
}
 

/**
 * Constructs an <code>ImageTypeSpecifier</code> from a
 * <code>RenderedImage</code>.  If a <code>BufferedImage</code> is
 * being used, one of the factory methods
 * <code>createFromRenderedImage</code> or
 * <code>createFromBufferedImageType</code> should be used instead in
 * order to get a more accurate result.
 *
 * @param image a <code>RenderedImage</code>.
 *
 * @exception IllegalArgumentException if the argument is
 * <code>null</code>.
 */
public ImageTypeSpecifier(RenderedImage image) {
    if (image == null) {
        throw new IllegalArgumentException("image == null!");
    }
    colorModel = image.getColorModel();
    sampleModel = image.getSampleModel();
}
 

/**
 * Constructs an <code>ImageTypeSpecifier</code> from a
 * <code>RenderedImage</code>.  If a <code>BufferedImage</code> is
 * being used, one of the factory methods
 * <code>createFromRenderedImage</code> or
 * <code>createFromBufferedImageType</code> should be used instead in
 * order to get a more accurate result.
 *
 * @param image a <code>RenderedImage</code>.
 *
 * @exception IllegalArgumentException if the argument is
 * <code>null</code>.
 */
public ImageTypeSpecifier(RenderedImage image) {
    if (image == null) {
        throw new IllegalArgumentException("image == null!");
    }
    colorModel = image.getColorModel();
    sampleModel = image.getSampleModel();
}
 

/**
 * Constructs an <code>ImageTypeSpecifier</code> from a
 * <code>RenderedImage</code>.  If a <code>BufferedImage</code> is
 * being used, one of the factory methods
 * <code>createFromRenderedImage</code> or
 * <code>createFromBufferedImageType</code> should be used instead in
 * order to get a more accurate result.
 *
 * @param image a <code>RenderedImage</code>.
 *
 * @exception IllegalArgumentException if the argument is
 * <code>null</code>.
 */
public ImageTypeSpecifier(RenderedImage image) {
    if (image == null) {
        throw new IllegalArgumentException("image == null!");
    }
    colorModel = image.getColorModel();
    sampleModel = image.getSampleModel();
}