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Re: Change decimal color code on the fly

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On Friday, November 16, 2012 11:05:12 AM UTC-5, Bob wrote:
> Hi All,
> 
> While making a datafile of decimal color pixel
> 
> codes for a small image, I want to change 
> 
> a particular String number that will go into the datafile 
> 
> to a different String number. 
> 
> I am doing this before it is added to the 
> 
> ArrayList. It does not seem to work and I need 
> 
> to know why. Below is my test to identify 
> 
> the String number and looking for the "if" 
> 
> statement to recognize it"
> 
>  
> 
> Here is a snip of my code:
> 
> ....
> 
>       mSet =   redStr +  greenStr +  blueStr;
> 
>       System.out.println(mSet);//this is successful
> 
>       mSetx= "255255255";
> 
> 
> 
>       if (mSet ==  mSetx) {
> 
>          System.out.println("yes, recognized"); 
> 
>          //mSet = ("113000000");
> 
>       }
> 
>       colorpxl.add(mSet);// ArrayList
> 
>       mSet = ""; 
> 
> 
> 
> Thanks in advance for your response. 
> 
> 
> 
> Bob


Hi Eric,
There might quite a few "oops"
as this is a work in progress.

Bob

import java.awt.Component;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import java.util.ArrayList;
import java.awt.event.*;
import java.awt.image.*;
import java.io.ObjectOutputStream;
import java.io.IOException;
import java.io.FileOutputStream;


public class BufferedImageSto extends Component {
   ArrayList<String> colorpxl = new ArrayList<String>();
   ArrayList<String> dimensions = new ArrayList<String>();
   
   String alphaStr, redStr, greenStr, blueStr, wStr, hStr, mSet,mSetx;
   
   public static void main(String[] foo) {
      new BufferedImageSto();
   }
   
   public void printPixelARGB(int pixel) {
      
      int alpha = (pixel >> 24) & 0xff;
      alphaStr =  Integer.toString(alpha);
      
      int red = (pixel >> 16) & 0xff;
      redStr= Integer.toString(red);
      if (redStr.length() < 2) {
         redStr = "0" + redStr;}
      if (redStr.length() < 3) {
         redStr = "0" + redStr;}
      
      int green = (pixel >> 8) & 0xff;
      greenStr= Integer.toString(green);
      if (greenStr.length() < 2) {
         greenStr = "0" + greenStr;}
      if (greenStr.length() < 3) {
         greenStr = "0" + greenStr;}
      
      
      int blue = (pixel) & 0xff;
      blueStr= Integer.toString(blue);
      if (blueStr.length() < 2) {
         blueStr = "0" + blueStr;}
      if (blueStr.length() < 3) {
         blueStr = "0" + blueStr;}
      
      mSet =   redStr +  greenStr +  blueStr;
      mSetx= "121000000";
      if (mSet.equals( mSetx)) {
         mSet = "";
         mSet= Integer.toString (255255255);
         System.out.println("revision "+ mSet);    
      }
      
      //System.out.println(mSet);
      colorpxl.add(mSet);
      mSet = "";
   }
   
   private void marchThroughImage(BufferedImage image) {
      int w = image.getWidth();
      String wStr= Integer.toString(w);
      int h = image.getHeight();
      String hStr = Integer.toString(h);
      dimensions.add(wStr);
      dimensions.add(hStr);
      
      System.out.println("width, height: " + w + ", " + h);
      
      for (int i = 0; i < w; i++) {
         for (int j = 0; j < h; j++) {
            // System.out.println("x,y: " + j + ", " + i);
            int pixel = image.getRGB(i, j);
            printPixelARGB(pixel);
            System.out.println("");
         }
      }

      String respName = "ColorPixlData.txt";
      System.out.println("File Saved as "+ respName);
      System.out.println(respName);
      try {
         FileOutputStream fout = new FileOutputStream(respName);
         ObjectOutputStream out = new ObjectOutputStream(fout);
         out.writeObject(dimensions);
         out.writeObject(colorpxl);
         out.flush();
         out.close();
         repaint();
      }
      catch (IOException e) {e.printStackTrace();
      } 
   }  
   
   public BufferedImageSto() {
      try {
         // get the BufferedImage, using the ImageIO class
         BufferedImage image = ImageIO.read(this.getClass().getResource("MH0x.png"));
         marchThroughImage(image);
         
      } catch (IOException e) {
         System.err.println(e.getMessage());
      }
   }
}

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Thread

Change decimal color code on the fly Bob <bherbst65@hotmail.com> - 2012-11-16 08:05 -0800
  Re: Change decimal color code on the fly Eric Sosman <esosman@comcast-dot-net.invalid> - 2012-11-16 11:49 -0500
  Re: Change decimal color code on the fly markspace <-@.> - 2012-11-16 08:50 -0800
  Re: Change decimal color code on the fly Nigel Wade <nmw@ion.le.ac.uk> - 2012-11-16 16:52 +0000
  Re: Change decimal color code on the fly Roedy Green <see_website@mindprod.com.invalid> - 2012-11-16 10:14 -0800
  Re: Change decimal color code on the fly Bob <bherbst65@hotmail.com> - 2012-11-16 10:39 -0800
    Re: Change decimal color code on the fly Eric Sosman <esosman@comcast-dot-net.invalid> - 2012-11-16 13:56 -0500
  Re: Change decimal color code on the fly Bob <bherbst65@hotmail.com> - 2012-11-16 12:23 -0800
    Re: Change decimal color code on the fly Lew <lewbloch@gmail.com> - 2012-11-16 12:38 -0800
    Re: Change decimal color code on the fly Eric Sosman <esosman@comcast-dot-net.invalid> - 2012-11-16 17:11 -0500

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