用Python画像，代码“玩”出新花样

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，可以给女票画一张速描画像，"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：