安裝Pillow

pip install pillow

操作圖像

from PIL import Image

im = Image.open('test.jpg')
w, h = im.size
print('Original image size: %sx%s' % (w, h))
# 縮放到50%:
im.thumbnail((w//2, h//2))
print('Resize image to: %sx%s' % (w//2, h//2))
im.save('thumbnail.jpg', 'jpeg')
# 應(yīng)用模糊濾鏡:
im2 = im.filter(ImageFilter.BLUR)
im2.save('blur.jpg', 'jpeg')

其他功能如切片、旋轉(zhuǎn)、濾鏡、輸出文字、調(diào)色板等一應(yīng)俱全。

生成驗證碼圖片

from PIL import Image, ImageDraw, ImageFont, ImageFilter

import random

# 隨機(jī)字母:
def rndChar():
    return chr(random.randint(65, 90))

# 隨機(jī)顏色1:
def rndColor():
    return (random.randint(64, 255), random.randint(64, 255), random.randint(64, 255))

# 隨機(jī)顏色2:
def rndColor2():
    return (random.randint(32, 127), random.randint(32, 127), random.randint(32, 127))

# 240 x 60:
width = 60 * 4
height = 60
image = Image.new('RGB', (width, height), (255, 255, 255))
# 創(chuàng)建Font對象:
font = ImageFont.truetype('Arial.ttf', 36)
# 創(chuàng)建Draw對象:
draw = ImageDraw.Draw(image)
# 填充每個像素:
for x in range(width):
    for y in range(height):
        draw.point((x, y), fill=rndColor())
# 輸出文字:
for t in range(4):
    draw.text((60 * t + 10, 10), rndChar(), font=font, fill=rndColor2())
# 模糊:
image = image.filter(ImageFilter.BLUR)
image.save('code.jpg', 'jpeg')

我們用隨機(jī)顏色填充背景，再畫上文字，最后對圖像進(jìn)行模糊，得到驗證碼圖片如下：

0014076720724832de067ce843d41c58f2af067d1e0720f000.jpg