import java.awt.*;
import ij.*;
import ij.gui.*;
import ij.process.*;
import ij.plugin.PlugIn;
/** This sample ImageJ plugin generates an RGB image. */
public class RedAndBlue_ implements PlugIn {
public void run(String arg) {
int w = 400, h = 400;
ImageProcessor ip = new ColorProcessor(w, h);
int[] pixels = (int[])ip.getPixels();
int i = 0;
for (int y = 0; y < h; y++) {
int red = (y * 255) / (h - 1);
for (int x = 0; x < w; x++) {
int blue = (x * 255) / (w - 1);
pixels[i++] = (255 << 24) | (red << 16) | blue;
}
}
new ImagePlus("Red and Blue", ip).show();
}
}