Rotate and Shift 16-bit Image
I would like to rotate and shift a 16-bit RGB image (U64 in LabVIEW). The IMAQ rotate and shift functions don't accept this image type, but they do accept a 16-bit grayscale image (I16 in LabVIEW). Unfortunately, this clips all values in my original image since it runs from -32,767 to + 32,767. The ExtractColorPlanes function requires a 16-bit image to be wired as the desination image but the IMAQ create VI does not allow U16 image to be created.
Any ideas?
Solved!
Go to Solution.
SJT a écrit:
I would like to rotate and shift a 16-bit RGB image (U64 in LabVIEW). The IMAQ rotate and shift functions don't accept this image type, but they do accept a 16-bit grayscale image (I16 in LabVIEW). Unfortunately, this clips all values in my original image since it runs from -32,767 to + 32,767. The ExtractColorPlanes function requires a 16-bit image to be wired as the desination image but the IMAQ create VI does not allow U16 image to be created.
IMAQ Create can create U16 images, but the standard Image Type input lack the appropriate value. This is bug n°1 . As workaround, you can either wire directly a con,stant with value 7 or dig into the Vision palettes and get a better typed constant from the IMAQ Cast Image VI.
However, this is not the solution to your problem, since there is the n°2 bug in the IMAQ ExtractSingleColorPlane VI : it doesn't accept U16 or U64 as destination images, and coerce the output to a I16 default image type.
A workaround is to create your own color plane extraction function. First convert the U64 image into an array, then extract the desired plane, as shown on the diagram below.
Message Edité par chilly charly le 12-30-2008 08:31 AM
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...
Attachments:
Extract Color Plane U64.vi.zip 15 KB
U16 ExtractSingleColorPlane.vi.zip 13 KB
U16 ExtractSingleColorPlane_BD.png 10 KB
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"Wiebe@CARYA" <[email protected]> wrote in message news:[email protected]...
Hi,
If I understand correctly, you just want a gradient screen to rotate, and to be able to adjust it's contrast.
This can be done a lot easier without an image. If you use OpenGL, you can just draw two triangles with there color set correctly. (You'd be able to make nice rainbow pictures as a bonus.)
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Message was edited by: JJMack
Message was edited by: JJMack -
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Has anyone else experienced this?
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Thanks in advance.
Not sure these embedded images will work.
8% zoomed - see all the strange banding and triangular artifacts
<a href="http://imgur.com/izrGuia"><img src="http://i.imgur.com/izrGuia.png" title="source: imgur.com" /></a>
Flattened view - all smooth:
<a href="http://imgur.com/Pn35IAK"><img src="http://i.imgur.com/Pn35IAK.png" title="source: imgur.com" /></a>
50% zoom, still there:
<a href="http://imgur.com/Z207hFd"><img src="http://i.imgur.com/Z207hFd.png" title="source: imgur.com" /></a>
100% artifacts disappear:
<a href="http://imgur.com/6aGOz0V"><img src="http://i.imgur.com/6aGOz0V.png" title="source: imgur.com" /></a>
100% 16-bit layered
<a href="http://imgur.com/0XJfe5e"><img src="http://i.imgur.com/0XJfe5e.png" title="source: imgur.com" /></a>
and finally 8-bit layered converted from 16-bit with dither.
<a href="http://imgur.com/PSxiu43"><img src="http://i.imgur.com/PSxiu43.png" title="source: imgur.com" /></a>
help!I can't speak to why, perhaps someone more knowledgeable than I can speak to that. But if it only happens at certain views then it's purely a display issue; it won't happen in print or when you downsample to display size. Such banding issues have always disappeared for me when I output to 8 bit.
I'd assume that it's because of your monitor; it can't display all the colors and when zoomed out there's too wide of a range in a small area so banding occurs. But that's just my guess. -
Problem in rotating and moving image at the same time
the problem is that im making a car game(2D) in which u have upper view of car.
i have make the car rotate bt problem is that i canot move it forward or backward correctly
.wen i move it forward or backward i goes wrong...
nd another problem is that i cannot both rotate and move the car at same time
example if i press both up nd right arrow keys i doesnt move nd rotate..
nd also plz tell me the accelerate nd reverse method so i can speedup my car like other car games
here is the code
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.geom.*;
import java.applet.*;
import java.net.URL;
public class RaceGame extends JComponent
static int x=560;
static int y=410;
static int currentAngle=0;
static double hspeed,vspeed;
static int carspeed=1;
Image car;
//int angle=car.getAngle();
Image getImage(String filename)
URL url = getClass().getResource(filename);
ImageIcon icon = new ImageIcon(url);
return icon.getImage();
//Rectangle2D.Float rect=new Rectangle2D.Float(x,y,30,30);
//Rectangle rect=new Rectangle(x,y,30,30);
public RaceGame()
car=getImage("car1.jpeg");
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frame.setBounds(70,30,650,500);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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c.add(new RaceGame());
frame.addKeyListener(new adapter());
c.setBackground(Color.BLACK);
//JLabel finish=new JLabel("FINISH");
//c.add(finish);
public void rotate()
currentAngle+=1;
if(currentAngle>=360)
currentAngle=0;
repaint();
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super.paint(g);
Graphics2D g2d=(Graphics2D)g;
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AffineTransform newXform=(AffineTransform)(origXform.clone());
newXform.rotate(Math.toRadians(currentAngle),x,y);
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g2d.drawImage(car,x,y,this);
g2d.setTransform(origXform);
g.setColor(Color.WHITE);
g.drawLine(640,380,420,380);
g.drawLine(640,460,320,460);
g.drawLine(420,380,420,300);
g.drawLine(320,460,320,380);
g.drawLine(420,300,125,300);
g.drawLine(320,380,230,380);
g.drawLine(230,380,230,460);
g.drawLine(230,460,2,460);
g.drawLine(125,300,125,370);
g.drawLine(125,370,105,370);
g.drawLine(2,460,2,180);
g.drawLine(105,370,105,300);
g.drawLine(2,180,450,180);
g.drawLine(105,300,105,250);
g.drawLine(105,250,550,250);
g.drawLine(550,250,550,20);
g.drawLine(550,20,275,20);
g.drawLine(450,180,450,100);
g.drawLine(450,100,360,100);
g.drawLine(360,100,360,160);
g.drawLine(360,160,10,160);
g.drawLine(10,160,10,30);
g.drawLine(275,20,275,90);
g.drawLine(275,90,110,90);
g.drawLine(110,90,110,30);
repaint();
class adapter extends KeyAdapter
public void keyPressed(KeyEvent e)
switch(e.getKeyCode())
case KeyEvent.VK_LEFT:
currentAngle--;
repaint();
break;
case KeyEvent.VK_RIGHT:
currentAngle++;
repaint();
break;
case KeyEvent.VK_UP:
carspeed++;
hspeed=((double)carspeed)*Math.cos(currentAngle);
vspeed=((double)carspeed)*Math.sin(currentAngle);
x = x - (int) hspeed;
y = y - (int) vspeed;
repaint();
break;
case KeyEvent.VK_DOWN:
carspeed--;
hspeed=((double)carspeed)*Math.cos(currentAngle);
vspeed=((double)carspeed)*Math.sin(currentAngle);
x = x + (int)hspeed;
y = y + (int)vspeed;
repaint();
break;
public static void main(String[]args)
RaceGame race=new RaceGame();
race.CreateBase();
//race.setDoubleBuffered(true);
}the problem is that im making a car game(2D) in which u have upper view of car.
i have make the car rotate bt problem is that i canot move it forward or backward correctly
.wen i move it forward or backward i goes wrong...
nd another problem is that i cannot both rotate and move the car at same time
example if i press both up nd right arrow keys i doesnt move nd rotate..
nd also plz tell me the accelerate nd reverse method so i can speedup my car like other car games
plz help me
here is the code
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.geom.*;
import java.applet.*;
import java.net.URL;
public class RaceGame extends JComponent
static int x=560;
static int y=410;
static int currentAngle=0;
static double hspeed,vspeed;
static int carspeed=1;
Image car;
//int angle=car.getAngle();
Image getImage(String filename)
URL url = getClass().getResource(filename);
ImageIcon icon = new ImageIcon(url);
return icon.getImage();
//Rectangle2D.Float rect=new Rectangle2D.Float(x,y,30,30);
//Rectangle rect=new Rectangle(x,y,30,30);
public RaceGame()
car=getImage("car1.jpeg");
public void CreateBase()
JFrame frame=new JFrame("Dare2Race");
frame.setBounds(70,30,650,500);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container c=frame.getContentPane();
c.add(new RaceGame());
frame.addKeyListener(new adapter());
c.setBackground(Color.BLACK);
//JLabel finish=new JLabel("FINISH");
//c.add(finish);
public void rotate()
currentAngle+=1;
if(currentAngle>=360)
currentAngle=0;
repaint();
public void paint(Graphics g)
super.paint(g);
Graphics2D g2d=(Graphics2D)g;
AffineTransform origXform=g2d.getTransform();
AffineTransform newXform=(AffineTransform)(origXform.clone());
newXform.rotate(Math.toRadians(currentAngle),x,y);
g2d.setTransform(newXform);
g2d.drawImage(car,x,y,this);
g2d.setTransform(origXform);
g.setColor(Color.WHITE);
g.drawLine(640,380,420,380);
g.drawLine(640,460,320,460);
g.drawLine(420,380,420,300);
g.drawLine(320,460,320,380);
g.drawLine(420,300,125,300);
g.drawLine(320,380,230,380);
g.drawLine(230,380,230,460);
g.drawLine(230,460,2,460);
g.drawLine(125,300,125,370);
g.drawLine(125,370,105,370);
g.drawLine(2,460,2,180);
g.drawLine(105,370,105,300);
g.drawLine(2,180,450,180);
g.drawLine(105,300,105,250);
g.drawLine(105,250,550,250);
g.drawLine(550,250,550,20);
g.drawLine(550,20,275,20);
g.drawLine(450,180,450,100);
g.drawLine(450,100,360,100);
g.drawLine(360,100,360,160);
g.drawLine(360,160,10,160);
g.drawLine(10,160,10,30);
g.drawLine(275,20,275,90);
g.drawLine(275,90,110,90);
g.drawLine(110,90,110,30);
repaint();
class adapter extends KeyAdapter
public void keyPressed(KeyEvent e)
switch(e.getKeyCode())
case KeyEvent.VK_LEFT:
currentAngle--;
repaint();
break;
case KeyEvent.VK_RIGHT:
currentAngle++;
repaint();
break;
case KeyEvent.VK_UP:
carspeed++;
hspeed=((double)carspeed)*Math.cos(currentAngle);
vspeed=((double)carspeed)*Math.sin(currentAngle);
x = x - (int) hspeed;
y = y - (int) vspeed;
repaint();
break;
case KeyEvent.VK_DOWN:
carspeed--;
hspeed=((double)carspeed)*Math.cos(currentAngle);
vspeed=((double)carspeed)*Math.sin(currentAngle);
x = x + (int)hspeed;
y = y + (int)vspeed;
repaint();
break;
public static void main(String[]args)
RaceGame race=new RaceGame();
race.CreateBase();
//race.setDoubleBuffered(true);
}and there is no compile time error in this code
the only error that occurs when u write java RaceGame is because of the car image which compiler doesnt found and throughs exception if u place any image in ur bin folder adn name it car.jpg it wont generate error -
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I will offer more suggestions as they evolve.
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Simple Question - does anyone have a full list of what Elements 9 will allow with 16 bit images?
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MTSTUNER -
Hi,I'm trying to make a game kinda like gta or asteroids whereyou have top view. I am using an image to be the player and, I want to rotate that image using left and righ keys and with the up key move the player to the direction whereit is rotated.
The problem is that i cannot display the rotation and movement at the same time.
I'm using a code like this.
AffineTransform transform = new AffineTransform
public void checkGameInput(){
float velocityX=0;
float velocityY=0;
if(rotateLeft.isPressed()){
angle1+=angle2;
transform.rotate(-angle2, player.getWidth()/2, player.getHeight()/2);
// similar for rightkey
if (moveFront.isPressed()){
velocityX=_Player.SPEED*Math.cos(angle1),
//same for velocityY
}the problem is when i try to print on the sceen.
I can update position
public void draw(Graphics 2D g){
g.drawImage(player. getImage(), Math.round(player.getX()), Math.round(player.getY()),null) // player.getX(9 returns position of playeror update rtation
public void draw(Graphics 2D g){
g.drawImage(player.getImage(),transform, null);is there a way to join this to drawImageso I can rotate ane move the rotatyed image?
thank you very much for any kind of help.
Edited by: Muninn on Nov 29, 2008 3:13 AMUse the transform to do both rotation and translation (multiple transform operations can be concatenated)
transform.rotate(-angle2, player.getWidth()/2, player.getHeight()/2);
transform.translate(player.getX(), player.getY()); -
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g2.drawRenderedImage(image, at);
//g2.setPaint(Color.red);
//g2.fill(new Ellipse2D.Double(loc.x-2, loc.y-2, 4, 4));
public synchronized void step() {
int sign = goAhead ? 1 : -1;
double x = loc.x + sign*t*Math.cos(theta);
double y = loc.y + sign*t*Math.sin(theta);
loc.setLocation(x, y);
setTransform();
repaint();
private void setTransform() {
double x = loc.x - image.getWidth()/2;
double y = loc.y - image.getHeight()/2;
at.setToTranslation(x, y);
at.rotate(theta, image.getWidth()/2, image.getHeight()/2);
private JPanel getUIPanel() {
JPanel panel = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(1,0,1,0);
gbc.weightx = 1.0;
String[] ids = { "ahead", "stop", "back" };
ActionListener al = new ActionListener() {
public void actionPerformed(ActionEvent e) {
String ac = e.getActionCommand();
if(ac.equals("stop")) {
walker.stop();
} else {
if(ac.equals("ahead")) {
goAhead = true;
} else if(ac.equals("back")) {
goAhead = false;
walker.start();
for(int j = 0; j < ids.length; j++) {
JButton button = new JButton(ids[j]);
button.addActionListener(al);
if(j == ids.length-1)
gbc.gridwidth = GridBagConstraints.REMAINDER;
panel.add(button, gbc);
JSlider slider = new JSlider(-180, 180, 0);
slider.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
int angle = ((JSlider)e.getSource()).getValue();
theta = Math.toRadians(angle);
setTransform();
repaint();
gbc.gridwidth = 3;
gbc.fill = GridBagConstraints.HORIZONTAL;
panel.add(slider, gbc);
return panel;
public static void main(String[] args) throws IOException {
String path = "images/geek/geek----t.gif";
BufferedImage image = ImageIO.read(new File(path));
TankGame test = new TankGame(image);
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.add(test);
f.add(test.getUIPanel(), "Last");
f.setSize(400,400);
f.setLocation(200,200);
f.setVisible(true);
class Walker implements Runnable {
TankGame game;
Thread thread;
boolean moving = false;
long delay = 100;
public Walker(TankGame tg) {
game = tg;
public void run() {
while(moving) {
try {
Thread.sleep(delay);
} catch(InterruptedException e) {
moving = false;
game.step();
public void start() {
if(!moving) {
moving = true;
thread = new Thread(this);
thread.setPriority(Thread.NORM_PRIORITY);
thread.start();
public void stop() {
moving = false;
if(thread != null)
thread.interrupt();
thread = null;
} -
I use aperture 3 since a long time. Using slit viewer, noe the bigger image become bigger then the given space and shifted to the right, so that I can't see the complete picture anymore. And I also don't see the last few picture in the strip below. How can I splve this problem?
This lloks like your preferences file might have become corrupted.
you probably have a problem with corrupted user preferences.
Remove the Preferences: Remove the Aperture's user preferences from the User Library as described here:
Aperture 3: Troubleshooting Basics http://support.apple.com/kb/HT3805
Note:Your User Library is hidden by default in 10.7.x or later - to open it in a Finder window use the "Go" menu from the Finder's main menu bar.
Quit Aperture, if it is running. Log off and on again.
Open the user library by using the Finder's "Go > Go to Folder" menu and hold down the options-key, until "Library" appears in the drop down menu. Select it.
In the widow that will open, scroll down to "Preferences"
From the "Preferences" folder remove "com.apple.Aperture.plist".
Then try to launch Aperture again.
But deleting the "Preferences" file will cause Aperture to forget the preferences settings. Be prepared to have to reset all options you set using the Aperture Preferences panel.
Regards
Léonie -
Rotate and scale an image witohout deforming it
Hello you all!
I have to rotate and scale an image, but i don't wont to deform it.
I'm thinking to something like 16/9 images on 4/3 screens (with two horizontal or vertical black lines around the scaled image)...
I thinked to transform the image in bitmap format, then create a bigger image and fill the empty spaces with zero-pixels...
Is there a simplest and more efficient way to do it with 2D java classes?
Thank you!See reply 8 in Help to rotate image for an idea.
-
Is it possible to rotate and scale an image?
Is it possible to rotate and scale an image with Grapchis2D at the same time?
One method call to do it all?
lets say the original image size is 200x200
I can scale the image with
Graphics.drawImage(image, 0,0, 500,500,this);
But now i need to rotate it as well and keep the new size which is 500x500
how do i do that ?Have you already tried the scale(double sx, double
sy) and rotate(double theta) methods of Graphics2D?no.
Maybe you are looking for
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I right click on task bar and go into and change wheather to always hide, hide when inactive, or always show icons and click ok. Then I'm back to the start menu box to click apply then ok to go back to the desktop. When I click on apply or ok in th
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I need to process a potentially large document which could prove too large to be read into memory at once by the DOM parser. The document would look something like.. (sorry about the formatting - can't use tabs!) <Root> <Parent> <Child> <Blah........
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I'm quite new to java and I'm having a little trouble. I need to enter a REALLY large number into a long variable (long x = 0xAA55AA0000000000). However Java is giving me the error �integer number too large�. Does anyone know why this is happening or
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I am trying to create a generic List, where I can pass the layout & item renderer as parameters. Since it is not possible to pass parameters to a MXML component, I figured I should create my List in Actionscript. I figured it would go something like