/**
* 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);
}
}
public DisplayImage16(int w, int h) {
this();
iWidth = w;
iHeight = h;
iSize = iWidth * iHeight;
imageBufferArray = new short[iSize];
for (int i = 0; i < iSize; i++) {
imageBufferArray[i] = 0;
}
bImage = new BufferedImage(iWidth, iHeight, BufferedImage.TYPE_USHORT_GRAY);
bRaster = bImage.getRaster();
bRaster.setDataElements(0, 0, iWidth, iHeight, imageBufferArray);
// buffGraphics = (Graphics2D) bImage.createGraphics();
// buffGraphics.setFont(font);
this.setPreferredSize(new Dimension(iWidth, iHeight));
setVisible(true);
// this.setBorder(BorderFactory.createLoweredBevelBorder());
}
public void updateImage(short[] imageData) {
bRaster.setDataElements(0, 0, iWidth, iHeight, imageData);
repaint();
}
public static BufferedImage getImageFromArray(int[] pixels, int width, int height) {
BufferedImage imageBI = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
WritableRaster raster = (WritableRaster) imageBI.getData();
raster.setPixels(0, 0, width, height, pixels);
return imageBI;
}
