수업자료_filter_posterize

size(1500,300);
background(255);
PImage img=loadImage("01.jpg");
image(img,0,0);

int cols=5;
int w=width/cols;
int h=height;

int[]vals={2,4,8,16,32};

for(int i=0; i<cols; i++){
  image(img,i*w,0,w,h);

  filter(POSTERIZE,vals[i]);

}