java change image color
import java.awt.image.BufferedImage;
import java.awt.image.WritableRaster;
import java.io.File;
// w w w . jav a 2s . com
import javax.imageio.ImageIO;
public class Main {
public static void main(String[] args) throws Exception {
BufferedImage img = colorImage(ImageIO.read(new File("NWvnS.png")));
ImageIO.write(img, "png", new File("Test.png"));
}
private static BufferedImage colorImage(BufferedImage image) {
int width = image.getWidth();
int height = image.getHeight();
WritableRaster raster = image.getRaster();
for (int xx = 0; xx < width; xx++) {
for (int yy = 0; yy < height; yy++) {
int[] pixels = raster.getPixel(xx, yy, (int[]) null);
pixels[0] = 0;
pixels[1] = 255;
pixels[2] = 255;
raster.setPixel(xx, yy, pixels);
}
}
return image;
}
}