Capture image with webcam: how to change image orientation

Question

Hi all,
I have taken the code shown in thread http://forum.java.sun.com/thread.jspa?threadID=570463&tstart=0, and it works ok (many thanks for it).
However, all webcam resolutions are in "landscape" mode (e.g. 320 x 240), but I would like to capture a "portrait" image (e.g. in 240 x 320).
Do you know any easy way to do it (but not physically tilting the camera, so that the video in the screen is shown in its correct orientation)?
Best regards.

Answer 1

Hi Owen,
in my current application I don't need right now to use any large image, so that I have decided to implement a "simple" solution as the first one that you appointed: to use a transparent rectangle above the image, and then crop the saved image withing the limits of this rectangle.
In order to do it, I have modified your code so that the panel (visualContainer) where to show the image is using an OverlayLayout format:
<address>visualContainer = new JPanel();</address>
<address>OverlayLayout overlay = new OverlayLayout(visualContainer);</address>
<address>visualContainer.setLayout(overlay);</address>
I have added one class to create the transparent rectangle, using a code like this:
class TopPanel extends JPanel
Point loc;
int width, height;
public TopPanel()
setOpaque(false);
width = 50;
height = 50;
protected void paintComponent(Graphics g)
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
if(loc == null)
init();
g2.setPaint(Color.blue);
g2.drawRect(loc.x, loc.y, width, height);
private void init()
int w = getWidth();
int h = getHeight();
loc = new Point();
loc.x = (w - width)/2;
loc.y = (h - height)/2;
In order to show the rectangle, what I have done is to add a TopPanel() to visualContainer just before adding the Player visualComponent.
However, by doint in this way, the rectangle is not shown, but only the webcam image. I don't know if I'm doing something wrong, so any help on this issue is welcome.
Best regards,
izk