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  • python学习---50行代码实现图片转字符画2

    from PIL import Image

    codeLib = '''@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/|()1{}[]?-_+~<>i!lI;:,"^`'. '''  #生成字符画所需的字符集
    count = len(codeLib)

    def transform1(image_file):
      image_file = image_file.convert("L")  #转换为黑白图片,参数"L"表示黑白模式
      codePic = ''
      for h in range(0,image_file.size[1]):   #size属性表示图片的分辨率,'0'为横向大小,'1'为纵向
        for w in range(0,image_file.size[0]):
          gray = image_file.getpixel((w,h))   #返回指定位置的像素,如果所打开的图像是多层次的图片,那这个方法就返回一个元组
          codePic = codePic + codeLib[int(((count-1)*gray)/256)]  #建立灰度与字符集的映射
        codePic = codePic+' '
    return codePic

    def transform2(image_file):
      codePic = ''
      for h in range(0,image_file.size[1]):
        for w in range(0,image_file.size[0]):
          g,r,b = image_file.getpixel((w,h))
          gray = int(r* 0.299+g* 0.587+b* 0.114)
          codePic = codePic + codeLib[int(((count-1)*gray)/256)]
        codePic = codePic+' '
    return codePic

    fp = open(u'xx.jpg','rb')
    image_file = Image.open(fp)
    image_file=image_file.resize((int(image_file.size[0]*0.75), int(image_file.size[1]*0.5)))  #调整图片大小
    print (u'Info:',image_file.size[0],' ',image_file.size[1],' ',count)

    tmp = open('output.txt','w')
    tmp.write(transform2(image_file))
    tmp.close()

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  • 原文地址:https://www.cnblogs.com/hangzhi/p/9096321.html
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