private static ImageElement fetchImageProperties(
     final BufferedImage source,
     final ImageType imageType,
     final String id,
     final Date modifiedDate,
     final String mimeType)
     throws NullPointerException, IOException {
   if (verifyNotNull(source)) {
     ImageElement image = new ImageElement();
     image.setBitDepth(
         verifyNotNull(source.getColorModel().getPixelSize())
             ? source.getColorModel().getPixelSize()
             : 0);
     image.setHeight(verifyNotNull(source.getHeight()) ? source.getHeight() : 0);
     image.setWidth(verifyNotNull(source.getWidth()) ? source.getWidth() : 0);
     image.setSizeInBytes(determineSizeOfBufferedImage(source, imageType.toString()));
     image.setCreated(new Date(System.currentTimeMillis()));
     image.setTransparent(
         determineTransparencyType(source.getGraphics().getColor().getTransparency()));
     if (verifyNotNull(modifiedDate)) image.setModified(modifiedDate);
     image.setId((verifyNotNull(id) ? id : ""));
     image.setFontType(
         verifyNotNull(source.getGraphics().getFont())
             ? source.getGraphics().getFont()
             : new Font("Default", 0, 0));
     image.setMediaType(MediaType.Missing);
     return image;
   }
   throw new NullPointerException(E_OBJECT_WAS_NULL);
 }
  private BufferedImage convert(BufferedImage image, int imageType) {
    if (image.getType() == imageType) {
      return image;
    }

    int w = image.getWidth();
    int h = image.getHeight();
    BufferedImage newImg = new BufferedImage(w, h, imageType);
    ColorSpace srcSpace = image.getColorModel().getColorSpace();
    ColorSpace newSpace = newImg.getColorModel().getColorSpace();
    ColorConvertOp convert = new ColorConvertOp(srcSpace, newSpace, null);
    convert.filter(image, newImg);
    return newImg;
  }
  /**
   * Save onscreen image to file - suffix must be png, jpg, or gif.
   *
   * @param filename the name of the file with one of the required suffixes
   */
  public static void save(String filename) {
    File file = new File(filename);
    String suffix = filename.substring(filename.lastIndexOf('.') + 1);

    // png files
    if (suffix.toLowerCase().equals("png")) {
      try {
        ImageIO.write(onscreenImage, suffix, file);
      } catch (IOException e) {
        e.printStackTrace();
      }
    }

    // need to change from ARGB to RGB for jpeg
    // reference:
    // http://archives.java.sun.com/cgi-bin/wa?A2=ind0404&L=java2d-interest&D=0&P=2727
    else if (suffix.toLowerCase().equals("jpg")) {
      WritableRaster raster = onscreenImage.getRaster();
      WritableRaster newRaster;
      newRaster = raster.createWritableChild(0, 0, width, height, 0, 0, new int[] {0, 1, 2});
      DirectColorModel cm = (DirectColorModel) onscreenImage.getColorModel();
      DirectColorModel newCM =
          new DirectColorModel(
              cm.getPixelSize(), cm.getRedMask(), cm.getGreenMask(), cm.getBlueMask());
      BufferedImage rgbBuffer = new BufferedImage(newCM, newRaster, false, null);
      try {
        ImageIO.write(rgbBuffer, suffix, file);
      } catch (IOException e) {
        e.printStackTrace();
      }
    } else {
      System.out.println("Invalid image file type: " + suffix);
    }
  }
Exemple #4
0
  /**
   * Construct the <code>BufferedImage</code> from the given file. The file can be given as an URL,
   * or a reference to local image file. If this image has been loaded already, use the saved
   * version.
   *
   * @param filename the file name for the desired image
   */
  public ImageMaker(String filename) {
    /** now we set up the image file for the user to process */
    try {
      this.inputfile = new File(filename);
      String abs = inputfile.getCanonicalPath();
      if (loadedImages.containsKey(abs)) {
        this.image = loadedImages.get(abs);
        this.width = this.image.getWidth();
        this.height = this.image.getHeight();
      } else {
        this.imageSource = ImageIO.read(this.inputfile);
        this.width = this.imageSource.getWidth();
        this.height = this.imageSource.getHeight();

        this.cmodel = this.imageSource.getColorModel();
        this.image = new BufferedImage(this.width, this.height, BufferedImage.TYPE_INT_ARGB);
        this.colorOp =
            new ColorConvertOp(
                this.cmodel.getColorSpace(), image.getColorModel().getColorSpace(), null);
        this.colorOp.filter(this.imageSource, this.image);
        loadedImages.put(abs, this.image);
      }
    } catch (IOException e) {
      System.out.println("Could not open the file");
    }
  }
Exemple #5
0
 /**
  * Turn a (possibly) translucent or indexed image into a display-compatible bitmask image using
  * the given alpha threshold and render-to-background colour, or display-compatible translucent
  * image. The alpha values in the image are set to either 0 (below threshold) or 255 (above
  * threshold). The render-to-background colour bg_col is used to determine how the pixels
  * overlapping transparent pixels should be rendered. The fast algorithm just sets the colour
  * behind the transparent pixels in the image (for bitmask source images); the slow algorithm
  * actually renders the image to a background of bg_col (for translucent sources).
  *
  * @param thresh alpha threshold between 0 and 255
  * @param fast use fast algorithm (only set bg_col behind transp. pixels)
  * @param bitmask true=use bitmask, false=use translucent
  */
 public JGImage toDisplayCompatible(int thresh, JGColor bg_col, boolean fast, boolean bitmask) {
   Color bgcol = new Color(bg_col.r, bg_col.g, bg_col.b);
   int bgcol_rgb = (bgcol.getRed() << 16) | (bgcol.getGreen() << 8) | bgcol.getBlue();
   JGPoint size = getSize();
   int[] buffer = getPixels();
   // render image to bg depending on bgcol
   BufferedImage img_bg;
   if (bitmask) {
     img_bg = createCompatibleImage(size.x, size.y, Transparency.BITMASK);
   } else {
     img_bg = createCompatibleImage(size.x, size.y, Transparency.TRANSLUCENT);
   }
   int[] bg_buf;
   if (!fast) {
     Graphics g = img_bg.getGraphics();
     g.setColor(bgcol);
     // the docs say I could use bgcol in the drawImage as an
     // equivalent to the following two lines, but this
     // doesn't handle translucency properly and is _slower_
     g.fillRect(0, 0, size.x, size.y);
     g.drawImage(img, 0, 0, null);
     bg_buf = new JREImage(img_bg).getPixels();
   } else {
     bg_buf = buffer;
   }
   // g.dispose();
   // ColorModel rgb_bitmask = ColorModel.getRGBdefault();
   // rgb_bitmask = new PackedColorModel(
   //		rgb_bitmask.getColorSpace(),25,0xff0000,0x00ff00,0x0000ff,
   //		0x1000000, false, Transparency.BITMASK, DataBuffer.TYPE_INT);
   //		ColorSpace space, int bits, int rmask, int gmask, int bmask, int amask, boolean
   // isAlphaPremultiplied, int trans, int transferType)
   int[] thrsbuf = new int[size.x * size.y];
   for (int y = 0; y < size.y; y++) {
     for (int x = 0; x < size.x; x++) {
       if (((buffer[y * size.x + x] >> 24) & 0xff) >= thresh) {
         thrsbuf[y * size.x + x] = bg_buf[y * size.x + x] | (0xff << 24);
       } else {
         // explicitly set the colour of the transparent pixel.
         // This makes a difference when scaling!
         // thrsbuf[y*size.x+x]=bg_buf[y*size.x+x]&~(0xff<<24);
         thrsbuf[y * size.x + x] = bgcol_rgb;
       }
     }
   }
   return new JREImage(
       output_comp.createImage(
           new MemoryImageSource(
               size.x,
               size.y,
               // rgb_bitmask,
               img_bg.getColorModel(), // display compatible bitmask
               bitmask ? thrsbuf : bg_buf,
               0,
               size.x)));
 }
  // This method returns true if the specified image has transparent pixels
  // Source: http://www.exampledepot.com/egs/java.awt.image/HasAlpha.html
  public static boolean hasAlpha(Image image) {
    // If buffered image, the color model is readily available
    if (image instanceof BufferedImage) {
      BufferedImage bimage = (BufferedImage) image;
      return bimage.getColorModel().hasAlpha();
    }

    // Use a pixel grabber to retrieve the image's color model;
    // grabbing a single pixel is usually sufficient
    PixelGrabber pg = new PixelGrabber(image, 0, 0, 1, 1, false);
    try {
      pg.grabPixels();
    } catch (InterruptedException e) {
    }

    // Get the image's color model
    ColorModel cm = pg.getColorModel();
    return cm.hasAlpha();
  }
  public BufferedImage read(int imageIndex, ImageReadParam param) throws IOException {
    checkIndex(imageIndex);
    readHeader();

    if (iis == null) throw new IllegalStateException("input is null");

    BufferedImage img;

    clearAbortRequest();
    processImageStarted(imageIndex);

    if (param == null) param = getDefaultReadParam();

    sourceRegion = new Rectangle(0, 0, 0, 0);
    destinationRegion = new Rectangle(0, 0, 0, 0);

    computeRegions(
        param, this.width, this.height, param.getDestination(), sourceRegion, destinationRegion);

    scaleX = param.getSourceXSubsampling();
    scaleY = param.getSourceYSubsampling();

    // If the destination band is set used it
    sourceBands = param.getSourceBands();
    destBands = param.getDestinationBands();

    seleBand = (sourceBands != null) && (destBands != null);
    noTransform = destinationRegion.equals(new Rectangle(0, 0, width, height)) || seleBand;

    if (!seleBand) {
      sourceBands = new int[colorPlanes];
      destBands = new int[colorPlanes];
      for (int i = 0; i < colorPlanes; i++) destBands[i] = sourceBands[i] = i;
    }

    // If the destination is provided, then use it.  Otherwise, create new one
    bi = param.getDestination();

    // Get the image data.
    WritableRaster raster = null;

    if (bi == null) {
      if (sampleModel != null && colorModel != null) {
        sampleModel =
            sampleModel.createCompatibleSampleModel(
                destinationRegion.width + destinationRegion.x,
                destinationRegion.height + destinationRegion.y);
        if (seleBand) sampleModel = sampleModel.createSubsetSampleModel(sourceBands);
        raster = Raster.createWritableRaster(sampleModel, new Point(0, 0));
        bi = new BufferedImage(colorModel, raster, false, null);
      }
    } else {
      raster = bi.getWritableTile(0, 0);
      sampleModel = bi.getSampleModel();
      colorModel = bi.getColorModel();

      noTransform &= destinationRegion.equals(raster.getBounds());
    }

    byte bdata[] = null; // buffer for byte data

    if (sampleModel.getDataType() == DataBuffer.TYPE_BYTE)
      bdata = (byte[]) ((DataBufferByte) raster.getDataBuffer()).getData();

    readImage(bdata);

    if (abortRequested()) processReadAborted();
    else processImageComplete();

    return bi;
  }
  public void write(BufferedImage image, AVList params) throws IOException {
    if (image == null) {
      String msg = Logging.getMessage("nullValue.ImageSource");
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    if (0 == image.getWidth() || 0 == image.getHeight()) {
      String msg =
          Logging.getMessage("generic.InvalidImageSize", image.getWidth(), image.getHeight());
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    if (null == params || 0 == params.getValues().size()) {
      String reason = Logging.getMessage("nullValue.AVListIsNull");
      Logging.logger().finest(Logging.getMessage("GeotiffWriter.GeoKeysMissing", reason));
      params = new AVListImpl();
    } else {
      this.validateParameters(params, image.getWidth(), image.getHeight());
    }

    // how we proceed in part depends upon the image type...
    int type = image.getType();

    // handle CUSTOM type which comes from our GeoTiffreader (for now)
    if (BufferedImage.TYPE_CUSTOM == type) {
      int numColorComponents = 0, numComponents = 0, pixelSize = 0, dataType = 0, csType = 0;
      boolean hasAlpha = false;

      if (null != image.getColorModel()) {
        ColorModel cm = image.getColorModel();

        numColorComponents = cm.getNumColorComponents();
        numComponents = cm.getNumComponents();
        pixelSize = cm.getPixelSize();
        hasAlpha = cm.hasAlpha();

        ColorSpace cs = cm.getColorSpace();
        if (null != cs) csType = cs.getType();
      }

      if (null != image.getSampleModel()) {
        SampleModel sm = image.getSampleModel();
        dataType = sm.getDataType();
      }

      if (dataType == DataBuffer.TYPE_FLOAT && pixelSize == Float.SIZE && numComponents == 1) {
        type = BufferedImage_TYPE_ELEVATION_FLOAT32;
      } else if (dataType == DataBuffer.TYPE_SHORT
          && pixelSize == Short.SIZE
          && numComponents == 1) {
        type = BufferedImage_TYPE_ELEVATION_SHORT16;
      } else if (ColorSpace.CS_GRAY == csType && pixelSize == Byte.SIZE) {
        type = BufferedImage.TYPE_BYTE_GRAY;
      } else if (dataType == DataBuffer.TYPE_USHORT
          && ColorSpace.CS_GRAY == csType
          && pixelSize == Short.SIZE) {
        type = BufferedImage.TYPE_USHORT_GRAY;
      } else if (ColorSpace.TYPE_RGB == csType
          && pixelSize == 3 * Byte.SIZE
          && numColorComponents == 3) {
        type = BufferedImage.TYPE_3BYTE_BGR;
      } else if (ColorSpace.TYPE_RGB == csType
          && hasAlpha
          && pixelSize == 4 * Byte.SIZE
          && numComponents == 4) {
        type = BufferedImage.TYPE_4BYTE_ABGR;
      }
    }

    switch (type) {
      case BufferedImage.TYPE_3BYTE_BGR:
      case BufferedImage.TYPE_4BYTE_ABGR:
      case BufferedImage.TYPE_4BYTE_ABGR_PRE:
      case BufferedImage.TYPE_INT_RGB:
      case BufferedImage.TYPE_INT_BGR:
      case BufferedImage.TYPE_INT_ARGB:
      case BufferedImage.TYPE_INT_ARGB_PRE:
        {
          this.writeColorImage(image, params);
        }
        break;

      case BufferedImage.TYPE_USHORT_GRAY:
      case BufferedImage.TYPE_BYTE_GRAY:
        {
          this.writeGrayscaleImage(image, params);
        }
        break;

      case BufferedImage_TYPE_ELEVATION_SHORT16:
      case BufferedImage_TYPE_ELEVATION_FLOAT32:
        {
          String msg = Logging.getMessage("GeotiffWriter.FeatureNotImplementedd", type);
          Logging.logger().severe(msg);
          throw new IllegalArgumentException(msg);
        }
        //            break;

      case BufferedImage.TYPE_CUSTOM:
      default:
        {
          ColorModel cm = image.getColorModel();
          SampleModel sm = image.getSampleModel();

          StringBuffer sb =
              new StringBuffer(Logging.getMessage("GeotiffWriter.UnsupportedType", type));

          sb.append("\n");
          sb.append("NumBands=").append(sm.getNumBands()).append("\n");
          sb.append("NumDataElements=").append(sm.getNumDataElements()).append("\n");
          sb.append("NumColorComponents=").append(cm.getNumColorComponents()).append("\n");
          sb.append("NumComponents=").append(cm.getNumComponents()).append("\n");
          sb.append("PixelSize=").append(cm.getPixelSize()).append("\n");
          sb.append("hasAlpha=").append(cm.hasAlpha());

          String msg = sb.toString();
          Logging.logger().severe(msg);
          throw new IllegalArgumentException(msg);
        }
    }
  }