In this article, we share the example of Python website registration verification code generation class specific code for your reference, the details are as follows
# -*- coding:utf-8 -*-
'''
Created on April 7, 2017
@author: water
'''
import os
import random
import string
import sys
import math
from PIL import Image,ImageDraw,ImageFont,ImageFilter
from import settings
The position of the #fonts will vary between versions of the system
font_path = ('/home/workspace/aofeiKart/static', 'fonts/')#settings.STATIC_ROOT, 'fonts/')
font_path = (settings.STATIC_ROOT, 'fonts/')
# print font_path
# Generate several-digit CAPTCHA
number = 4
# Generate height and width of CAPTCHA images
size = (100,30)
# Background color, default is white
bgcolor = (255,255,255)
#Font color, default is blue
fontcolor = (0,0,255)
# Interference line color. Defaults to red.
linecolor = (255,0,0)
#Whether or not to include interference lines
draw_line = True
# Add upper and lower limits on the number of interference lines
line_number = (1,5)
# Used to generate a random string
# source = list(string.ascii_lowercase+'1234567890')
source = list('1234567890')
def gene_text():
# return '6666'
return ''.join((source,number))#number is the number of digits used to generate the CAPTCHA
# Used to draw interference lines
def gene_line(draw,width,height):
begin = ((0, width), (0, height))
end = ((0, width), (0, height))
([begin, end], fill = linecolor)
# Generate CAPTCHA
def gene_code():
width,height = size #Width and height
image = ('RGBA',(width,height),bgcolor) #Creating Pictures
font = (font_path,25) #Captcha fonts
draw = (image) #Creating brushes
text = gene_text() # Generate strings
font_width, font_height = (text)
(((width - font_width) / number, (height - font_height)/number),text,
font= font,fill=fontcolor) # Fill String
if draw_line:
gene_line(draw,width,height)
image = ((width+20,height+10), , (1,-0.3,0,-0.1,1,0), ) #Creating distortions
image = (ImageFilter.EDGE_ENHANCE_MORE) #Filter, Boundary Enhancement
image_file = text+'.png'
image_path = (settings.STATIC_ROOT, 'images/%s'%image_file)
(image_path) #SaveCaptcha image
return ':8000/static/images/%s'%image_file, text
if __name__ == "__main__":
print gene_code()
The implementation process is simple, with 2 main points to note:
1. Install the PIL library, set the font save directory
2. If you return the binary data stream of the image directly, as follows:
buf = () #() #() use it to fill str obj (buf, 'png') ['captcha'] = () return HttpResponse((), 'image/png') # return the image data stream as image/jpeg format, browser will treat it as an image
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