Setting rgb BufferedImage

[Viped]

Hi again. I am trying to make code that set all black pixels to white. But my code does nothing. Why is that?

package net.viped;

import java.awt.image.BufferedImage;

public class ImageManipulation {
    public ImageManipulation() {

    }

    public BufferedImage setTransparent(BufferedImage image) {

        for (int x = 0; x < image.getWidth(); x++) {
            for (int y = 0; y < image.getHeight(); y++) {
                if (image.getRGB(x, y) == (0x000000)) {
                    System.out.println("This never shows up");
                    image.setRGB(x, y, 0xffffff);
                }
            }
        } return image;
    }
}

[Viped]

Oh, print getRGB returns -16777216 where it should return 000000 thats the problem but shouldnt java be supposed to use hex colors?

[Viped]

Okay, now it works better but how about changing color to transparent, it should work by modifying alpha composition? Well my code doesnt.

package net.viped;

import java.awt.Color;
import java.awt.image.BufferedImage;

public class ImageManipulation {
    public ImageManipulation() {

    }

    public BufferedImage setTransparent(BufferedImage image) {
        image = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_ARGB);
        for (int x = 0; x < image.getWidth(); x++) {
            for (int y = 0; y < image.getHeight(); y++) {
                System.out.println(image.getRGB(x, y));
                int pixel = image.getRGB(x, y);
                if (image.getRGB(x, y) == (0)) {
                    System.out.println("Now this shows up");
                    Color newColor = new Color(00, 00, 00, 00);
                    image.setRGB(x, y, 0x00000000);
                }
            }
        } return image;
    }
}

[Viped]

And one more update. All debug info I can get shows the code works right but nothing happening to the pic. Heres the code:

package net.viped;

import java.awt.Color;
import java.awt.image.BufferedImage;

public class ImageManipulation {
    public ImageManipulation() {

    }

    public BufferedImage setTransparent(BufferedImage image) {
        image = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_ARGB);
        for (int x = 0; x < image.getWidth(); x++) {
            for (int y = 0; y < image.getHeight(); y++) {
                System.out.println(image.getRGB(x, y));
                int pixel = image.getRGB(x, y);
                printPixelARGB(pixel);
                if (image.getRGB(x, y) == (0x000000)) {
                    System.out.println("Now this shows up");
                    int newRGB = 0xFF00FFFF;
                    image.setRGB(x, y, newRGB);
                    pixel = image.getRGB(x, y);
                    printPixelARGB(pixel);
                }
            }
        } return image;
    }

    public void printPixelARGB(int pixel) {
        int alpha = (pixel >> 24) & 0xff;
        int red = (pixel >> 16) & 0xff;
        int green = (pixel >> 8) & 0xff;
        int blue = (pixel) & 0xff;
        System.out.println("argb: " + alpha + ", " + red + ", " + green + ", " + blue);
      }
}

[Viped]

Okay, I am officially idiot. There was problem with from where I used this class. ImageManipulation class changes color almoust right. Only that it changes all the colors not just those where color is 0x000000