recipe-577113.py 文件源码

def adjust(xa, ya, x, y, xb, yb):
    global image
    if(image.getpixel((x,y)) == 0):
      d=math.fabs(xa-xb) + math.fabs(ya-yb)
      v=(image.getpixel((xa,ya)) + image.getpixel((xb,yb)))/2.0 \
         + (random.random()-0.5) * d * roughness
      c=int(math.fabs(v) % 256)
      image.putpixel((x,y), c)