import jlab.graphics.DWindow;
public class ChromaKey {
public static void main(String[] args) {
DWindow fg = new DWindow();
fg.loadImage("bird.gif");
int w = fg.getWidth();
int h = fg.getHeight();
DWindow bg = new DWindow();
bg.loadImage("sky.jpg",w, h);
DWindow out = new DWindow(w, h);
fg.setLocation(10, 10);
bg.setLocation(10 + fg.getWidth(), 10);
out.setLocation(10 + 2*fg.getWidth(), 10);
out.setPixmap(chromaKey(fg.getPixmap(), bg.getPixmap(), DWindow.GREEN));
}
//-----------------------------------------------------------------
public static int[][] chromaKey(int[][] fg, int[][] bg, int c) {
int w = fg.length;
int h = fg[0].length;
int[][] b = new int[w][h];
for (int x = 0; x < w; x++) {
for (int y = 0; y < h ; y++) {
if (fg[x][y] == c){
b[x][y] = bg[x][y];
}else{
b[x][y] = fg[x][y];
}
}
}
return b;
}
//-----------------------------------------------------------------
}
import jlab.graphics.DWindow;
public class Blend {
public static void main(String[] args) {
int w = 300, h = 300;
DWindow pic1 = new DWindow(w, h);
DWindow pic2 = new DWindow(w, h);
DWindow out = new DWindow(w, h);
pic1.loadImage("cat.jpg", w, h);
pic2.loadImage("baby.jpg", w, h);
pic1.setLocation(10, 10);
pic2.setLocation(10 + w, 10);
out.setLocation(10 + 2 * w, 10);
while (true) {
for (double a = 0; a <= 1; a += 0.1) {
int[][] b = blend(pic1.getPixmap(), pic2.getPixmap(), a);
out.setPixmap(b);
}
for (double a = 1; a >= 0; a -= 0.1) {
int[][] b = blend(pic1.getPixmap(), pic2.getPixmap(), a);
out.setPixmap(b);
}
}
}
//-----------------------------------------------------------------
public static int[][] blend(int[][] b1, int[][] b2, double a) {
int w = b1.length;
int h = b1[0].length;
int[][] b3 = new int[w][h];
for (int x = 0; x < w; x++) {
for (int y = 0; y < h; y++) {
int rb1 = DWindow.getR(b1[x][y]);
int rb2 = DWindow.getR(b2[x][y]);
int gb1 = DWindow.getG(b1[x][y]);
int gb2 = DWindow.getG(b2[x][y]);
int bb1 = DWindow.getB(b1[x][y]);
int bb2 = DWindow.getB(b2[x][y]);
int re = (int)(a * rb1 + (1 - a) * rb2);
int gr = (int)(a * gb1 + (1 - a) * gb2);
int bl = (int)(a * bb1 + (1 - a) * bb2);
b3[x][y] = DWindow.mixRGB(re,gr,bl);
}
}
return b3;
}
//-----------------------------------------------------------------
}
|