java.awt.image.BufferedImage.isAlphaPremultiplied()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中java.awt.image.BufferedImage.isAlphaPremultiplied()方法的一些代码示例，展示了BufferedImage.isAlphaPremultiplied()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。BufferedImage.isAlphaPremultiplied()方法的具体详情如下：
包路径：java.awt.image.BufferedImage
类名称：BufferedImage
方法名：isAlphaPremultiplied

BufferedImage.isAlphaPremultiplied介绍

暂无

代码示例

代码示例来源：origin: runelite/runelite

private static BufferedImage rgbaToIndexedBufferedImage(final BufferedImage sourceBufferedImage)
{
  final BufferedImage indexedImage = new BufferedImage(
    sourceBufferedImage.getWidth(),
    sourceBufferedImage.getHeight(),
    BufferedImage.TYPE_BYTE_INDEXED);
  final ColorModel cm = indexedImage.getColorModel();
  final IndexColorModel icm = (IndexColorModel) cm;
  final int size = icm.getMapSize();
  final byte[] reds = new byte[size];
  final byte[] greens = new byte[size];
  final byte[] blues = new byte[size];
  icm.getReds(reds);
  icm.getGreens(greens);
  icm.getBlues(blues);
  final WritableRaster raster = indexedImage.getRaster();
  final int pixel = raster.getSample(0, 0, 0);
  final IndexColorModel resultIcm = new IndexColorModel(8, size, reds, greens, blues, pixel);
  final BufferedImage resultIndexedImage = new BufferedImage(resultIcm, raster, sourceBufferedImage.isAlphaPremultiplied(), null);
  resultIndexedImage.getGraphics().drawImage(sourceBufferedImage, 0, 0, null);
  return resultIndexedImage;
}

代码示例来源：origin: haraldk/TwelveMonkeys

/**
 * Creates a copy of the given image, with a solid background
 *
 * @param pOriginal   the original image
 * @param pBackground the background color
 * @return a new {@code BufferedImage}
 */
private static BufferedImage createSolid(BufferedImage pOriginal, Color pBackground) {
  // Create a temporary image of same dimension and type
  BufferedImage solid = new BufferedImage(pOriginal.getColorModel(), pOriginal.copyData(null), pOriginal.isAlphaPremultiplied(), null);
  Graphics2D g = solid.createGraphics();
  try {
    // Clear in background color
    g.setColor(pBackground);
    g.setComposite(AlphaComposite.DstOver);// Paint "underneath"
    g.fillRect(0, 0, pOriginal.getWidth(), pOriginal.getHeight());
  }
  finally {
    g.dispose();
  }
  return solid;
}

代码示例来源：origin: geotools/geotools

protected BufferedImage getStartImage(BufferedImage copyFrom, int width, int height) {
  Map<String, Object> properties = null;
  if (copyFrom.getPropertyNames() != null) {
    properties = new HashMap<String, Object>();
    for (String name : copyFrom.getPropertyNames()) {
      properties.put(name, copyFrom.getProperty(name));
    }
  }
  SampleModel sm = copyFrom.getSampleModel().createCompatibleSampleModel(width, height);
  WritableRaster raster = Raster.createWritableRaster(sm, null);
  BufferedImage image =
      new BufferedImage(
          copyFrom.getColorModel(),
          raster,
          copyFrom.isAlphaPremultiplied(),
          (Hashtable<?, ?>) properties);
  // white background
  Graphics2D g2D = (Graphics2D) image.getGraphics();
  Color save = g2D.getColor();
  g2D.setColor(Color.WHITE);
  g2D.fillRect(0, 0, image.getWidth(), image.getHeight());
  g2D.setColor(save);
  return image;
}

代码示例来源：origin: geotools/geotools

private BufferedImage getStartImage(BufferedImage copyFrom) {
  Dimension dim = getStartDimension();
  Hashtable<String, Object> properties = null;
  if (copyFrom.getPropertyNames() != null) {
    properties = new Hashtable<String, Object>();
    for (String name : copyFrom.getPropertyNames()) {
      properties.put(name, copyFrom.getProperty(name));
    }
  }
  SampleModel sm =
      copyFrom.getSampleModel()
          .createCompatibleSampleModel((int) dim.getWidth(), (int) dim.getHeight());
  WritableRaster raster = Raster.createWritableRaster(sm, null);
  ColorModel colorModel = copyFrom.getColorModel();
  boolean alphaPremultiplied = copyFrom.isAlphaPremultiplied();
  DataBuffer dataBuffer =
      createDataBufferFilledWithNoDataValues(raster, colorModel.getPixelSize());
  raster = Raster.createWritableRaster(sm, dataBuffer, null);
  BufferedImage image = new BufferedImage(colorModel, raster, alphaPremultiplied, properties);
  if (levelInfo.getNoDataValue() == null) {
    Graphics2D g2D = (Graphics2D) image.getGraphics();
    Color save = g2D.getColor();
    g2D.setColor(backgroundColor);
    g2D.fillRect(0, 0, image.getWidth(), image.getHeight());
    g2D.setColor(save);
  }
  return image;
}

代码示例来源：origin: geotools/geotools

colorModel,
        (WritableRaster) scaledImageRaster,
        image.isAlphaPremultiplied(),
        null);
return scaledImage;

代码示例来源：origin: stackoverflow.com

static BufferedImage switchPalette(BufferedImage bi,
    IndexColorModel icm) {
  WritableRaster wr = bi.getRaster();
  boolean bAlphaPremultiplied = bi.isAlphaPremultiplied();
  return new BufferedImage(icm, wr, bAlphaPremultiplied, new Hashtable());
}

代码示例来源：origin: stackoverflow.com

public static BufferedImage deepCopyImage(BufferedImage bF){
   ColorModel cm = bF.getColorModel();
   boolean alphaPre = bF.isAlphaPremultiplied();
   WritableRaster wR = bF.copyData(null);
   return new BufferedImage(cm, wR, alphaPre, null);
 }

代码示例来源：origin: geogebra/geogebra

public ImageD(BufferedImage image) {
  super(image.getColorModel(), image.copyData(null),
      image.isAlphaPremultiplied(), null);
}

代码示例来源：origin: threerings/playn

@Override
public Image snapshot() {
 ColorModel cm = img.getColorModel();
 boolean isAlphaPremultiplied = img.isAlphaPremultiplied();
 WritableRaster raster = img.copyData(null);
 BufferedImage snap = new BufferedImage(cm, raster, isAlphaPremultiplied, null);
 return new JavaStaticImage(ctx, snap, scale);
}

代码示例来源：origin: com.github.sviperll/chicory-core

@Override
public BufferedImage createCompatibleDestImage(BufferedImage src, ColorModel destCM) {
  if (destCM == null)
    destCM = src.getColorModel();
  WritableRaster raster = src.getRaster().createCompatibleWritableRaster();
  Hashtable<String, Object> properties = new Hashtable<String, Object>();
  for (String name: src.getPropertyNames()) {
    properties.put(name, src.getProperty(name));
  }
  return new BufferedImage(destCM, raster, src.isAlphaPremultiplied(), properties);
}

代码示例来源：origin: com.googlecode.playn/playn-java

@Override
public Image snapshot() {
 ColorModel cm = img.getColorModel();
 boolean isAlphaPremultiplied = img.isAlphaPremultiplied();
 WritableRaster raster = img.copyData(null);
 BufferedImage snap = new BufferedImage(cm, raster, isAlphaPremultiplied, null);
 return new JavaStaticImage(ctx, snap, scale);
}

代码示例来源：origin: lbalazscs/Pixelitor

public static BufferedImage copyImage(BufferedImage src) {
  assert src != null;
  WritableRaster raster = null;
  try {
    raster = src.copyData(null);
  } catch (OutOfMemoryError e) {
    Dialogs.showOutOfMemoryDialog(e);
  }
  return new BufferedImage(src.getColorModel(), raster, src.isAlphaPremultiplied(), null);
}

代码示例来源：origin: com.github.sviperll/chicory-common

@Override
public BufferedImage createCompatibleDestImage(BufferedImage src, ColorModel destCM) {
  if (destCM == null)
    destCM = src.getColorModel();
  WritableRaster raster = src.getRaster().createCompatibleWritableRaster();
  Hashtable<String, Object> properties = new Hashtable<String, Object>();
  for (String name: src.getPropertyNames()) {
    properties.put(name, src.getProperty(name));
  }
  return new BufferedImage(destCM, raster, src.isAlphaPremultiplied(), properties);
}

代码示例来源：origin: jtrfp/terminal-recall

private BufferedImage [] getSpecialRAWImage(String name, Color [] palette, int upscalePowerOfTwo) throws IllegalAccessException, FileLoadException, IOException{
  RAWFile dat = getRAW(name);
  dat.setPalette(palette);
  BufferedImage [] segs = dat.asSegments(upscalePowerOfTwo);
  for(BufferedImage seg:segs){
    Graphics g = seg.getGraphics();
    BufferedImage scaled = new BufferedImage(seg.getColorModel(),seg.copyData(null),seg.isAlphaPremultiplied(),null);
    g.drawImage(scaled.getScaledInstance(seg.getWidth()-2, seg.getHeight()-2, Image.SCALE_AREA_AVERAGING), 1, 1, seg.getWidth()-2, seg.getHeight()-2, null);
    g.dispose();
    }
  return segs;
  }

代码示例来源：origin: stackoverflow.com

public static BufferedImage copy(BufferedImage img) {
  Hashtable<?,?> properties = new Hashtable<>();
  for (String propertyName : img.getPropertyNames()) {
    properties.put(propertyName, img.getProperty(propertyName));
  }
  return new BufferedImage(img.getColorModel(),
      img.copyData(null),
      img.isAlphaPremultiplied(), properties);

}

代码示例来源：origin: io.playn/playn-java-base

@Override
public Image snapshot() {
 BufferedImage bmp = ((JavaImage)image).bufferedImage();
 ColorModel cm = bmp.getColorModel();
 boolean isAlphaPremultiplied = bmp.isAlphaPremultiplied();
 WritableRaster raster = bmp.copyData(null);
 BufferedImage snap = new BufferedImage(cm, raster, isAlphaPremultiplied, null);
 return new JavaImage(gfx, image.scale(), snap, "<canvas>");
}

代码示例来源：origin: playn/playn

@Override
public Image snapshot() {
 BufferedImage bmp = ((JavaImage)image).bufferedImage();
 ColorModel cm = bmp.getColorModel();
 boolean isAlphaPremultiplied = bmp.isAlphaPremultiplied();
 WritableRaster raster = bmp.copyData(null);
 BufferedImage snap = new BufferedImage(cm, raster, isAlphaPremultiplied, null);
 return new JavaImage(gfx, image.scale(), snap, "<canvas>");
}

代码示例来源：origin: org.apache.xmlgraphics/batik-awt-util

public void fixAlpha(BufferedImage bi) {
  if ((!bi.getColorModel().hasAlpha()) ||
    (!bi.isAlphaPremultiplied()))
    // No need to fix alpha if it isn't premultiplied...
    return;
  if (GraphicsUtil.is_INT_PACK_Data(bi.getSampleModel(), true))
    fixAlpha_INT_PACK(bi.getRaster());
  else
    fixAlpha_FALLBACK(bi.getRaster());
}

代码示例来源：origin: fr.avianey.apache-xmlgraphics/batik

public void fixAlpha(BufferedImage bi) {
  if ((!bi.getColorModel().hasAlpha()) ||
    (!bi.isAlphaPremultiplied()))
    // No need to fix alpha if it isn't premultiplied...
    return;
  if (GraphicsUtil.is_INT_PACK_Data(bi.getSampleModel(), true))
    fixAlpha_INT_PACK(bi.getRaster());
  else
    fixAlpha_FALLBACK(bi.getRaster());
}

代码示例来源：origin: apache/batik

public void fixAlpha(BufferedImage bi) {
  if ((!bi.getColorModel().hasAlpha()) ||
    (!bi.isAlphaPremultiplied()))
    // No need to fix alpha if it isn't premultiplied...
    return;
  if (GraphicsUtil.is_INT_PACK_Data(bi.getSampleModel(), true))
    fixAlpha_INT_PACK(bi.getRaster());
  else
    fixAlpha_FALLBACK(bi.getRaster());
}

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