Pillow

Python平台的图像处理标准库

获取图片大小

运行示例

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Python基础 Pillow

from PIL import Image

def getSize():
    # 打开一个图片
    pic = Image.open("D:/PythonProject/test.jpg")
    # 获取图片大小
    w, h = pic.size
    print("原始图片大小 %s x %s" %(w,h))

getSize()

运行结果

D:\PythonProject>python main.py
原始图片大小 5184 x 3456

缩放图片

运行示例

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Python基础 Pillow

from PIL import Image

# 缩放图片
def thumbnail():
    # 打开一个图片
    pic = Image.open("D:/PythonProject/test.jpg")
    # 获取图片大小
    w, h = pic.size
    print("原始图片大小 %s x %s" %(w,h))

    # 缩放一半
    pic.thumbnail((w//2, h//2))
    newW, newH = pic.size
    print("缩放后的图片大小 %s x %s" %(newW,newH))
    # 另存图片
    pic.save("thumbnail_test.jpg", "jpeg")

thumbnail()

运行结果

D:\PythonProject>python main.py
原始图片大小 5184 x 3456
缩放后的图片大小 2592 x 1728

模糊特效

运行示例

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Python基础 Pillow

from PIL import Image, ImageFilter

# 模糊特效
def imageBlur():
    # 打开一个图片
    pic = Image.open("D:/PythonProject/chen.jpg")

    # 加模糊滤镜
    newPic = pic.filter(ImageFilter.BLUR)
    newPic.save("blur_chen.jpg", "jpeg")

imageBlur()

验证码

运行示例

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Python基础 Pillow

from PIL import Image, ImageFilter, ImageDraw, ImageFont
import random

# 随机字母
def randomChar():
    return chr(random.randint(65, 90))

# 随机颜色
def randomColor():
    return (random.randint(64, 255),random.randint(64, 255),random.randint(64, 255))

# 文字颜色
def rndFontColor():
    return (random.randint(32, 127), random.randint(32, 127), random.randint(32, 127))

# 图片大小
width = 60 * 5
height = 60
pic = Image.new("RGB", (width, height),(255,255,255))

# 创建画笔
font = ImageFont.truetype('arial.ttf', 36)

# 创建Draw对象
draw = ImageDraw.Draw(pic)

# 填充每个像素
for x in range(width):
    for y in range(height):
        draw.point((x, y), fill = randomColor())

# 文字
for t in range(5):
    draw.text((60 * t + 10, 10), randomChar(), font=font, fill=rndFontColor())

pic.save("code.jpg", "jpeg")

运行结果