public getPicInfo(Frame father) {
try {
FileDialog diag = new FileDialog(father);
diag.setVisible(true);
m_Img =
getToolkit()
.getImage(diag.getDirectory() + diag.getFile())
.getScaledInstance(W, H, Image.SCALE_SMOOTH);
MediaTracker mt = new MediaTracker(this);
mt.addImage(m_Img, 0);
mt.waitForAll();
PixelGrabber grab = new PixelGrabber(m_Img, 0, 0, W, H, m_Pix, 0, W);
grab.grabPixels();
m_ImgSrc = new MemoryImageSource(W, H, m_Pix, 0, W);
m_Img = createImage(m_ImgSrc);
System.out.println("Wait HERE !");
} catch (InterruptedException e) {
}
}
public void init() {
MediaTracker mt = new MediaTracker(this);
URL url = getClass().getResource("tiger.gif");
try {
image = createImage((ImageProducer) url.getContent());
mt.addImage(image, 0);
mt.waitForID(0);
} catch (Exception e) {
e.printStackTrace();
}
imw = image.getWidth(this);
imh = image.getWidth(this);
pixels = new int[imw * imh];
try {
PixelGrabber pg = new PixelGrabber(image, 0, 0, imw, imh, pixels, 0, imw);
pg.grabPixels();
} catch (InterruptedException e) {
e.printStackTrace();
}
addMouseMotionListener(
new MouseMotionAdapter() {
public void mouseMoved(MouseEvent e) {
int mx = e.getX(), my = e.getY();
if (mx > 0 && mx < imw && my > 0 && my < imh) {
int pixel = ((int[]) pixels)[my * imw + mx];
int red = defaultRGB.getRed(pixel),
green = defaultRGB.getGreen(pixel),
blue = defaultRGB.getBlue(pixel),
alpha = defaultRGB.getAlpha(pixel);
showStatus("red=" + red + " green=" + green + " blue=" + blue + " alpha=" + alpha);
}
}
});
}
private static int[] makeGradientPallet() {
BufferedImage image = new BufferedImage(100, 1, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
Point2D start = new Point2D.Float(0f, 0f);
Point2D end = new Point2D.Float(99f, 0f);
float[] dist = {0f, .5f, 1f};
Color[] colors = {Color.RED, Color.YELLOW, Color.GREEN};
g2.setPaint(new LinearGradientPaint(start, end, dist, colors));
g2.fillRect(0, 0, 100, 1);
g2.dispose();
int width = image.getWidth(null);
int[] pallet = new int[width];
PixelGrabber pg = new PixelGrabber(image, 0, 0, width, 1, pallet, 0, width);
try {
pg.grabPixels();
} catch (InterruptedException ex) {
ex.printStackTrace();
}
return pallet;
}
/** *************** Grab Pixels and Convert to gray scale ************** */
int[] pixel_grab(Image img, int width, int height) {
int pixSrc[] = new int[w * h];
try {
PixelGrabber pg = new PixelGrabber(img, 0, 0, w, h, pixSrc, 0, w);
pg.grabPixels();
} catch (Exception e) {
System.out.println("Exception at Pixel Grabbing");
}
for (int i = 0; i < w * h; i++) // Convertion of pixle form to normal single Value...
{
int a = pixSrc[i];
int r = (0xff & (a >> 16));
int g = (0xff & (a >> 8));
int b = (0xff & a);
int avg = (int) ((.33 * r + .56 * g + .11 * b)); // Add a constant to each pixel
pixSrc[i] = avg;
}
return (pixSrc);
}
