Re: OT: Avoid automatic registration with Image Code
Re: OT: Avoid automatic registration with Image Code
- Subject: Re: OT: Avoid automatic registration with Image Code
- From: Gino Pacitti <email@hidden>
- Date: Fri, 8 Jun 2007 12:13:14 +0100
Hi Daniele
Try this.. if I read you right..
import java.awt.*;
import java.awt.image.*;
import java.io.*;
import java.util.*;
import com.sun.image.codec.jpeg.*;
import java.awt.Toolkit;
public class TextInImage {
public TextInImage(){
}
public static void createLoginImage(String inFile, String outFile,
String text){
try{
Image img = Toolkit.getDefaultToolkit().getImage(inFile);
MediaTracker mediaTracker = new MediaTracker(new Container());
mediaTracker.addImage(img, 0);
mediaTracker.waitForID(0);
int width = img.getWidth(null);
int height = img.getHeight(null);
BufferedImage image = new BufferedImage(width, height,
BufferedImage.TYPE_INT_RGB);
Graphics2D graphic = image.createGraphics();
graphic.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphic.drawImage(img, 0, 0, width, height, null);
// parse coordinates for text origin
int x = Integer.parseInt("5");
int y = Integer.parseInt("30");
// parse color and transparency information
int red = Integer.parseInt("0");
int green = Integer.parseInt("0");
int blue = Integer.parseInt("0");
int transparency = Integer.parseInt("100");
// do the text
String string = text;
Font font = new Font(null,Font.BOLD, 18);
// Font font = new Font(null, Font.BOLD, 24);
Color color = new Color(red, green, blue, 255 *
transparency / 100);
graphic.setFont(font);
graphic.setColor(color);
graphic.drawString(string, x, y);
// save new image
BufferedOutputStream out = new BufferedOutputStream(new
FileOutputStream(outFile));
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam
(image);
param.setQuality(40.0f, false);
encoder.setJPEGEncodeParam(param);
encoder.encode(image);
}catch(Exception e){
e.printStackTrace();
}
}
}
On 8 Jun 2007, at 12:07, Daniele Corti wrote:
Hi all,
I know it's a little off-topic, but since I'll use it in WO, I
would ask for some advice in this:
I looked for tutorial or howto for create a registration panel
that ask for an authentication code, passed to the client by an
image to avoid the spam registrations.
For the first time in memories Google betrays me, and I wasn't
able to find out almost anything...
So please, have anybody any ideas? I really can't think anything
more than create 10 images and serve then at random, or using an
applet... but I think there must be some other way to do this...
thanks in advance!
--
Daniele Corti
AIM: S0CR4TE5
Messenger: email@hidden
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