수업자료_blend() function using SUBTRACT argument in loops sketch

size(832,624);

background(loadImage("01.jpg"));
PImage img=loadImage("02.jpg");

int w=width/6;
int h=height/8;


for(int i=0; i<width; i+=w){
  for(int j=0; j<height; j+=h){
    blend(img,0,0,width,height,i,j,w,h,SUBTRACT);
  }
}