示例代码1
#!/usr/bin/python
# -*- coding: UTF-8 -*-
# author: Carl time:2020/5/15
import qrcode
from PIL import Image, ImageFile, ImageDraw
ImageFile.LOAD_TRUNCATED_IMAGES = True
# 设置中心图片四周圆角
def circle_crop_image(im):
rad = 10 # 设置半径
circle = Image.new('L', (rad * 2, rad * 2), 0)
draw = ImageDraw.Draw(circle)
draw.ellipse((0, 0, rad * 2, rad * 2), fill=255)
alpha = Image.new('L', im.size, 255)
w, h = im.size
alpha.paste(circle.crop((0, 0, rad, rad)), (0, 0))
alpha.paste(circle.crop((0, rad, rad, rad * 2)), (0, h - rad))
alpha.paste(circle.crop((rad, 0, rad * 2, rad)), (w - rad, 0))
alpha.paste(circle.crop((rad, rad, rad * 2, rad * 2)), (w - rad, h - rad))
im.putalpha(alpha)
return im
# 生成二位码
def create_qr_code(url, file_name, icon_file=None):
qr = qrcode.QRCode(
version=5,
# 设置容错率为最高
error_correction=qrcode.constants.ERROR_CORRECT_H,
box_size=6,
border=4,
)
qr.add_data(url)
# 添加二维码内容，可以直接是字符串文本，也可url链接
qr.make(fit=True)
img = qr.make_image(fill_color="#3ac25b", back_color="#FFF")
# 设置二维码为彩色
img = img.convert("RGBA")
if icon_file:
icon = Image.open(icon_file)
w, h = img.size
factor = 4
size_w = int(w / factor)
size_h = int(h / factor)
icon_w, icon_h = icon.size
if icon_w > size_w:
icon_w = size_w
if icon_h > size_h:
icon_h = size_h
icon = icon.resize((icon_w, icon_h), Image.ANTIALIAS)
w = int((w - icon_w) / 2)
h = int((h - icon_h) / 2)
icon = icon.convert("RGBA")
# ------以下是进一步处理中心图片，可省略------
# 白底图
white_img = Image.new("RGBA", (icon_w + 6, icon_h + 6), (255, 255, 255))
# 白底图圆角处理
# white_img = circle_crop_image(white_img)
# 灰底图
gray_img = Image.new("RGBA", (icon_w + 2, icon_h + 2), (230, 230, 230))
# 灰底图圆角处理
gray_img = circle_crop_image(gray_img)
# 粘贴灰底图
white_img.paste(gray_img, (2, 2))
# 粘贴白图
img.paste(white_img, (w - 2, h - 2))
# icon处理圆角
icon = circle_crop_image(icon)
# ----------------以上----------------
# 粘贴icon
img.paste(icon, (w + 1, h + 1))
img.show()
img.save('' + file_name + '.png', quality=100)
icon_path = "logo.jpg" # 中心图片
create_qr_code('http://www.baidu.com', "hnww", "logo.jpg")
示例代码2----中心图片周围有白边
# coding = utf-8
# 二维码生成
import qrcode
from PIL import Image, ImageDraw
# 设置圆角
def circle_crop_image(im, radii):
# 创建一个黑色背景的画布
circle = Image.new('L', (radii * 2, radii * 2), 0)
# 画黑色方形
draw = ImageDraw.Draw(circle)
# 画白色圆形
draw.ellipse((0, 0, radii * 2, radii * 2), fill=255)
# 把原图转换成RGBA模式，增加alpha通道
img = im.convert("RGBA")
w, h = img.size
# 画4个角（将整圆分离为4个部分）再粘贴到alpha通道
alpha = Image.new('L', img.size, 255)
# 左上角
alpha.paste(circle.crop((0, 0, radii, radii)), (0, 0))
# 右上角
alpha.paste(circle.crop((radii, 0, radii * 2, radii)), (w - radii, 0))
# 右下角
alpha.paste(circle.crop((radii, radii, radii * 2, radii * 2)), (w - radii, h - radii))
# 左下角
alpha.paste(circle.crop((0, radii, radii, radii * 2)), (0, h - radii))
# 白色区域透明可见，黑色区域不可见
img.putalpha(alpha)
return img
# 生成二位码
def create_qr_code(url, icon_file, file_name, save_path):
qr = qrcode.QRCode(
version=5,
# 设置容错率为最高
error_correction=qrcode.ERROR_CORRECT_H,
box_size=6,
border=4,
)
qr.add_data(url)
qr.make(fit=True)
img = qr.make_image(fill_color="#3ac25b", back_color="#FFF")
img = img.convert("RGBA")
icon = Image.open(icon_file)
# 把RGB的图转换成RGBA模式，处理alpha透明通道（后边替换透明为白色）
icon = icon.convert("RGBA")
w, h = img.size
icon_w, icon_h = icon.size
# 超过80的压缩到80
if icon_w > 80:
icon = icon.resize((80, 80), Image.ANTIALIAS)
icon_w, icon_h = icon.size
w = int((w - 80) / 2)
h = int((h - 80) / 2)
else:
w = int((w - icon_w) / 2)
h = int((h - icon_h) / 2)
# 把png背景色转换为白色，避免处理裁剪圆角时出现黑边
w_d = Image.new('RGBA', icon.size, (255, 255, 255))
w_d.paste(icon, (0, 0, icon_w, icon_h), icon)
# r = icon_w // 15
r = 6
icon = circle_crop_image(w_d, r)
# 白底图（尺寸大小）
white_img = Image.new("RGBA", (icon_w+20, icon_h+20), (255, 255, 255))
white_img = circle_crop_image(white_img, r)
# 灰底图
gray_img = Image.new("RGBA", (icon_w, icon_h), (230, 230, 230))
# 灰底图圆角处理
gray_img = circle_crop_image(gray_img, r)
# 粘贴灰底图（起点坐标 = （白图长 - 灰图长） / 2）
white_img.paste(gray_img, (10, 10), gray_img)
# 粘贴白图（位置起点坐标）
img.paste(white_img, (w-5, h-5), white_img)
# 粘贴icon（起点坐标）
img.paste(icon, (w + 5, h + 5), icon)
save_file = save_path + file_name + '.png'
img.save(save_file, quality=100)
# img.show()
return save_file
if __name__ == '__main__':
icon_path = 'logo.jpg'
save_path = 'E:/qt_demo/'
create_qr_code('http://www.zhousc.cn', icon_path, 'cs', save_path)
参考链接
QRCode二维码生成和识别qrcode库生成二维码时填充logo变成黑白色的解决Python 生成带Logo的圆角带边框二维码
