python画竹叶的代码 python用代码画画

用下面的这段Python代码可以将一张图片用速描的方式"画"出来，可以给女画一张

速描

画像，"显摆"一下啦！

from PIL import Image
from random import randint
old = Image.open('myold.jpg')
new = Image.new('L', old.size, 255)
w, d = old.size
old = old.convert('L')
# Define the size of the pencil:
PEN_SIZE = 2
COLOR_DIFF = 7
LINE_LEN = 2
for i in range(PEN_SIZE + 1, w - PEN_SIZE - 1):
for j in range(PEN_SIZE + 1, d - PEN_SIZE - 1):
originalcolor = 255
lcolor = sum([old.getpixel((i - r, j))
for r in range(PEN_SIZE)]) // PEN_SIZE
rcolor = sum([old.getpixel((i + r, j))
for r in range(PEN_SIZE)]) // PEN_SIZE
if abs(lcolor - rcolor) > COLOR_DIFF:
originalcolor -= (255 - old.getpixel((i, j))) // 4
for p in range(-LINE_LEN + randint(-1,1), LINE_LEN + randint(-1,1)):
new.putpixel((i, j+p), originalcolor)
ucolor = sum([old.getpixel((i, j - r))
for r in range(PEN_SIZE)]) // PEN_SIZE
dcolor = sum([old.getpixel((i, j + r))
for r in range(PEN_SIZE)]) // PEN_SIZE
if abs(ucolor - dcolor) > COLOR_DIFF:
originalcolor -= (255 - old.getpixel((i, j))) // 4
for p in range(-LINE_LEN + randint(-1,1), LINE_LEN + randint(-1,1)):
new.putpixel((i+p, j), originalcolor)
lucolor = sum([old.getpixel((i - r, j - r))
for r in range(PEN_SIZE)]) // PEN_SIZE
rdcolor = sum([old.getpixel((i + r, j + r))
for r in range(PEN_SIZE)]) // PEN_SIZE
if abs(lucolor - rdcolor) > COLOR_DIFF:
originalcolor -= (255 - old.getpixel((i, j))) // 4
for p in range(-LINE_LEN + randint(-1,1), LINE_LEN + randint(-1,1)):
new.putpixel((i-p, j+p), originalcolor)
rucolor = sum([old.getpixel((i + r, j - r))
for r in range(PEN_SIZE)]) // PEN_SIZE
ldcolor = sum([old.getpixel((i - r, j + r))
for r in range(PEN_SIZE)]) // PEN_SIZE
if abs(rucolor - ldcolor) > COLOR_DIFF:
originalcolor -= (255 - old.getpixel((i, j))) // 4
for p in range(-LINE_LEN + randint(-1,1), LINE_LEN + randint(-1,1)):
new.putpixel((i+p, j+p), originalcolor)
new.save('mynew02.jpg')

myold.jpg是图片的名字。

Mynew01.jpg是完成输出后的

速描

图。

如：