Python生成数字图片代码分享

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我是靠谱客的博主飘逸学姐，最近开发中收集的这篇文章主要介绍Python生成数字图片代码分享，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

本文向大家分享了几段Python生成数字图片的代码，喜欢的朋友可以参考。具体如下：

最终版本

# -*- coding:utf-8 -*-
from PIL import Image,ImageFont,ImageDraw,ImageFilter
import random
import os
import time
class Code(object):
  def __init__(self, imgSize=(35,35),\
    fontSize=25, bgColor=(255,)*4, fontColor=(0,0,0)):
    self.imgSize = imgSize
    self.fontSize = fontSize
    self.bgColor = bgColor
    self.fontColor = fontColor
  def setFontSize(self, size):
    self.fontSize = size;
  def getDigit(self, digit):
    return str(digit)
  def getPannel(self):
    pannel = Image.new('RGBA',self.imgSize,self.bgColor)
    return pannel
  def getFont(self, fontFile='./Arial.ttf'):
    return ImageFont.truetype(fontFile, self.fontSize)
  def getTextPos(self, digit, font):
    text = self.getDigit(digit)
    textWidth,textHeight = font.getsize(text);
    imgWidth,imgHeight = self.imgSize
    textPos = ((imgWidth-textWidth)/2, (imgHeight-textHeight)/2)
    return textPos
  def rotateImg(self,image,angle=0, expand=0):
    rot = image.rotate(angle, expand)
    fff = Image.new('RGBA',rot.size,self.bgColor)
    image = Image.composite(rot, fff, rot)
    return image
  def createImg(self, digit, font, angle):
    codeImg = Image.new('RGBA',self.imgSize,self.bgColor)
    draw = ImageDraw.Draw(codeImg);
    text = self.getDigit(digit)
    textPos = self.getTextPos(digit, font)
    draw.text(xy=textPos,text=text,fill=self.fontColor,font=font)
    codeImg = self.rotateImg(codeImg,angle)
    return codeImg
  def saveImg(self, img, savePath, imgName):
    img.save(savePath+'/'+imgName)
def createPath(path):
  if not os.path.exists(path):
    os.makedirs(path)
def createImages(code,rootPath='./images',digitList=range(10), fontSizeList=range(18,30),\
  angleList=[(45,90),(-45,45),(-45,-90)]):
  for index,angles in enumerate(angleList):
    if index==0:
      angleRange = '-90_-45'
    elif index == 1:
      angleRange = '-45_45'
    else:
      angleRange = '45_90'
    anglepath = os.path.join(rootPath, angleRange)
    createPath(anglepath)
    for digit in digitList:
      digitpath = os.path.join(anglepath, 'x'+str(digit))
      createPath(digitpath)
      for size in fontSizeList:
        angle = round(random.uniform(angles[0], angles[1]),5)
        code.setFontSize(size)
        imgName = str(digit)+'_'+str(size)+'_'+str(angle)+'.jpg'
        img = code.createImg(digit, code.getFont(),angle)
        code.saveImg(img, digitpath, imgName)

if __name__ == '__main__':
  imagesPath = './images'
  if os.path.exists(imagesPath):
    os.system('rm -rf '+imagesPath)
  os.mkdir(imagesPath)
  code = Code()
  for i in range(1000):
    createImages(code)
  # test ...
  # code = Code()
  # img = code.createImg(5,code.getFont(),0)
  # code.saveImg(img, savePath, 'test.jpg')
  # img.show()
  print 'hello'

# -*- coding:utf-8 -*-
from PIL import Image,ImageFont,ImageDraw,ImageFilter
import random
import os
class Captcha(object):
  def __init__(self,size=(20,24),fontSize=20):
    self.font = ImageFont.truetype('./fonts/Arial.ttf',fontSize)
    self.size = size
    self.image = Image.new('RGBA',self.size,(255,)*4)
    # self.texts = self.randNum(1)
    self.text = ''
  def rotate(self, angle):
    # rot = self.image.rotate(random.randint(-10,10),expand=0)
    rot = self.image.rotate(angle,expand=0)
    fff = Image.new('RGBA',rot.size,(255,)*4)
    self.image = Image.composite(rot,fff,rot)
  def randColor(self):
    self.fontColor = (random.randint(0,250),random.randint(0,250),random.randint(0,250))
  # def randNum(self,bits):
  #   return ''.join(str(random.randint(0,9)) for i in range(bits))
  def setNum(self, num):
    return num;
  def write(self,text,x,y):
    draw = ImageDraw.Draw(self.image)
    draw.text((x,y),text,fill=self.fontColor,font=self.font)
  def writeNum(self, num, angle):
    x = 2
    y = -2
    self.text = num
    self.fontColor = (0, 0, 0)
    self.write(num, x, y)
    self.rotate(angle)
    return self.text
    # character
    # xplus = 15
    # for text in self.texts:
      # self.randColor()
      # self.fontColor = (0, 0, 0)
      # self.write(text, x, y)
      # self.rotate(angle)
      # self.rotate(random.randint(-10,10))
      # x += xplus
    # return self.texts
  def save(self, save_path):
    # self.image.save('captcha.jpg')
    self.image.save(save_path)
pic_root_path = './pic'
if not os.path.exists(pic_root_path):
  os.mkdir(pic_root_path)
angles = [(45,90),(-45,45),(-90,-45)]
for i in range(10):
  pic_num_path = os.path.join(pic_root_path, 'pic'+str(i))
  if not os.path.exists(pic_num_path):
    os.mkdir(pic_num_path)
  for angle_i in angles:
    angle_name = str(angle_i[0])+'_'+str(angle_i[1])
    pic_angle_path = os.path.join(pic_num_path, angle_name)
    if not os.path.exists(pic_angle_path):
      os.mkdir(pic_angle_path)
    for angle in range(angle_i[0], angle_i[1]):
      for fontsize in range(25,28):
        img = Captcha(size=(20, 24), fontSize=fontsize)
        num = img.writeNum(str(i), angle)
        img_name = str(i)+'_'+str(fontsize)+'_'+str(angle)+'.bmp'
        save_path = os.path.join(pic_angle_path, img_name)
        img.save(save_path)

  # img = Captcha()
  # num = img.writeNum(str(i), random.randint(-90,-45))
  # img_name = str(i)+'.jpg'
  # pic_path = './pic'+str(i)
  # if not os.path.exists(pic_path):
  #   os.mkdir(pic_path)
  # save_path = os.path.join(pic_path, img_name)
  # save_path = os.path.join(pic_root_path, save_path)
  # img.save(save_path)
# img.image.show()
# img.save()

随机生成各种size和旋转角度的单个数字图片

# -*- coding:utf-8 -*-
from PIL import Image,ImageFont,ImageDraw,ImageFilter
import random
import os
import time
class Captcha(object):
  def __init__(self,size=(20,24),fontSize=20):
    self.font = ImageFont.truetype('./fonts/Arial.ttf',fontSize)
    self.size = size
    self.image = Image.new('RGBA',self.size,(255,)*4)
    self.text = ''
  def rotate(self, angle):
    rot = self.image.rotate(angle,expand=0)
    fff = Image.new('RGBA',rot.size,(255,)*4)
    self.image = Image.composite(rot,fff,rot)
  def randColor(self):
    self.fontColor = (random.randint(0,250),random.randint(0,250),random.randint(0,250))

  def setNum(self, num):
    return num;
  def write(self,text,x,y):
    draw = ImageDraw.Draw(self.image)
    draw.text((x,y),text,fill=self.fontColor,font=self.font)
  def writeNum(self, num, angle):
    x = 2
    y = -2
    self.text = num
    self.fontColor = (0, 0, 0)
    self.write(num, x, y)
    self.rotate(angle)
    return self.text
  def save(self, save_path):
    # self.image = self.image.filter(ImageFilter.EDGE_ENHANCE_MORE) #滤镜，边界加强
    self.image.save(save_path)
pic_root_path = './pic'
if not os.path.exists(pic_root_path):
  os.mkdir(pic_root_path)
angles = [(45,90),(-45,45),(-90,-45)]
for i in range(10):
  pic_num_path = os.path.join(pic_root_path, 'x'+str(i))
  if not os.path.exists(pic_num_path):
    os.mkdir(pic_num_path)
  for angle_i in angles:
    angle_name = str(angle_i[0])+'_'+str(angle_i[1])
    pic_angle_path = os.path.join(pic_num_path, angle_name)
    if not os.path.exists(pic_angle_path):
      os.mkdir(pic_angle_path)
    for fontsize in range(25,29):
      for j in range(2500):
        # Keep 5 decimal places
        angle = round(random.uniform(angle_i[0], angle_i[1]),5) 
        img = Captcha(size=(20, 24), fontSize=fontsize)
        num = img.writeNum(str(i), angle)
        img_name = 'x'+str(j)+'_'+str(fontsize)+'_'+str(angle)+'_'+str(num)+'.jpg'
        save_path = os.path.join(pic_angle_path, img_name)
        img.save(save_path)

文字居中

# -*- coding:utf-8 -*-
from PIL import Image,ImageFont,ImageDraw,ImageFilter
import random
import os
import time
imgWidth = 20
imgHeight = 24
fontSize = 28
backGroundColor = (255,)*4
fontColor = (0,)*3
text = '0'
font = ImageFont.truetype('./Arial.ttf', fontSize)
codeimg = Image.new('RGBA',(imgWidth,imgHeight), backGroundColor)
imagePath = './codes'
if not os.path.exists(imagePath):
  os.mkdir(imagePath)
textWidth, textHeight = font.getsize(text)
textLeft = (imgWidth-textWidth)/2
textTop = (imgHeight-textHeight)/2
draw = ImageDraw.Draw(codeimg)
draw.text(xy=(textLeft,textTop),text=text,fill=fontColor,font=font)
rot = codeimg.rotate(90,expand=0)
codeimg.rotate
fff = Image.new('RGBA', rot.size,backGroundColor)
codeimg = Image.composite(rot, fff, rot)
codeimg.show()
# codeimg.save('./codes/test.jpg')

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