大致介绍   在python爬虫爬取某些网站的验证码的时候可能会遇到验证码识别的问题,现在的验证码大多分为四类:     1、计算验证码          2、滑块验证码     3、识图验证码     4、语音验证码   这篇博客主要写的就是识图验证码,识别的是简单的验证码,要想让识别率更高,识别的更加准确就需要花很多的精力去训练自己的字体库。   识别验证码通常是这几个步骤:     1、灰度处理     2、二值化     3、去除边框(如果有的话)     4、降噪     5、切割字符或者倾斜度矫正     6、训练字体库     7、识别   这6个步骤中前三个步骤是基本的,4或者
2023-03-04 21:56:22 227KB 验证码 验证码识别
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使用php+数据库 形式,向需要验证的邮箱发送链接,点击链接验证。
2023-03-04 20:14:31 4KB 邮箱验证 php发送邮件
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定义图片的width、定义图片的height、定义图片上显示验证码的个数 创建字体,字体的大小应该根据图片的高度来定 产生随机的颜色分量来构造颜色值,这样输出的每位数字的颜色值都将不同。 随机产生40条干扰线,使图象中的认证码不易被其它程序探测到 随机产生的颜色将验证码绘制到图像中 四位数字的验证码保存到Session中 将图像输出到Servlet输出流中
2023-03-03 21:33:36 4KB 登录验证 验证码 生成验证码
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本设计为基于Hu不变矩的方法,平台是MATLAB,对验证码进行去噪,得到定位,切割,识别。戴GUI界面。需进行一定拓展。
2023-03-03 15:18:41 8KB matlab
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在信号与系统这门课程中运用matlab验证吉布斯现象
2023-03-03 08:45:09 264KB matlab
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20200420使用VB6.0求33选6的全组合数(解决变长字符串超过1MB之后写入的问题) 最近需要求组合数(买双色球生成号码用^_) 以前在大学专门学习过VB6.0,今后会迁移到VC6.0。 预计会在2020.5.1强化一下MFC,就可以了! 我也不知道边长字符串到底写入多少回崩溃。(现阶段人也不年轻了,也没有这么多时间去研究了!有兴趣的同学跟帖告诉我一下,在此谢过了!) ​ VERSION 5.00 Begin VB.Form Form1 Caption = "Form1" ClientHeight = 12825 ClientLeft = 450 ClientTop = 615 ClientWidth = 14535 LinkTopic = "Form1" ScaleHeight = 12825 ScaleWidth = 14535 Begin VB.TextBox Text2 BeginProperty Font Name = "宋体" Size = 14.25 Charset = 134 Weight = 400 Underline = 0 'False Italic = 0 'False Strikethrough = 0 'False EndProperty Height = 12255 Left = 600 MultiLine = -1 'True ScrollBars = 3 'Both TabIndex = 1 Top = 360 Width = 6135 End Begin VB.CommandButton Command2 Caption = "求33选6的全组合数" BeginProperty Font Name = "宋体" Size = 26.25 Charset = 134 Weight = 400 Underline = 0 'False Italic = 0 'False Strikethrough = 0 'False EndProperty Height = 975 Left = 8040 TabIndex = 0 Top = 5520 Width = 4935 End End Attribute VB_Name = "Form1" Attribute VB_GlobalNameSpace = False Attribute VB_Creatable = False Attribute VB_PredeclaredId = True Attribute VB_Exposed = False Option Explicit Private Sub Command1_Click() End Sub Private Sub Command2_Click() Dim h1%, h2%, h3%, h4%, h5%, h6% Dim h6sum% Dim i% Dim j% Dim temp% Dim count% Dim guangyayuan(35) As Integer Dim wutongshan(35) As Integer Dim guangyayuan6(35) As Integer Dim hong1%, hong2%, hong3%, hong4%, hong5%, hong6% Dim strWj As String ' For hong1 = 1 To 10 ' 'For hong2 = hong1 To 11 ' For hong2 = hong1 + 1 To 11 ' For hong3 = hong2 + 1 To 12 ' For hong4 = hong3 + 1 To 13 ' For hong5 = hong4 + 1 To 14 ' For hong6 = hong5 + 1 To 15 For hong1 = 1 To 28 For hong2 = hong1 + 1 To 29 For hong3 = hong2 + 1 To 30 For hong4 = hong3 + 1 To 31 For hong5 = hong4 + 1 To 32 For hong6 = hong5 + 1 To 33 'Text2 = Text2 & hong1 & "," & hong2 & "," & hong3 & "," & hong4 & "," & hong5 & "," & hong6 & vbCrLf strWj = strWj & hong1 & "," & hong2 & "," & hong3 & "," & hong4 & "," & hong5 & "," & hong6 & vbCrLf Next hong6 Next hong5 Next hong4 Next hong3 Next hong2 Next hong1 'Close #2 'Open "d:\ScoreW2.txt" For Output As #1 'Open "d:\求12选3的全组合数.txt" For Output As #1 Open "d:\求33选6的全组合数.txt" For Output As #1 'Write #1, Text2 Write #1, strWj Close #1 End Sub 我这里采用了一个最简单粗暴的做法,将每一组的六个号码立即写入磁盘。(具体交给操作系统了) 求33选6的全组合数.txt 大概23MB。 大致内容: "1,2,3,4,5,6 " "1,2,3,4,5,7 " "1,2,3,4,5,8 " "1,2,3,4,5,9 " "1,2,3,4,5,10 " "1,2,3,4,5,11 " "1,2,3,4,5,12 " "1,2,3,4,5,13 " "1,2,3,4,5,14 " "1,2,3,4,5,15 " "1,2,3,4,5,16 " "1,2,3,4,5,17 " "1,2,3,4,5,18 " "1,2,3,4,5,19 " "1,2,3,4,5,20 " "1,2,3,4,5,21 " "1,2,3,4,5,22 " "1,2,3,4,5,23 " "1,2,3,4,5,24 " "1,2,3,4,5,25 " "1,2,3,4,5,26 …… " "25,28,30,31,32,33 " "25,29,30,31,32,33 " "26,27,28,29,30,31 " "26,27,28,29,30,32 " "26,27,28,29,30,33 " "26,27,28,29,31,32 " "26,27,28,29,31,33 " "26,27,28,29,32,33 " "26,27,28,30,31,32 " "26,27,28,30,31,33 " "26,27,28,30,32,33 " "26,27,28,31,32,33 " "26,27,29,30,31,32 " "26,27,29,30,31,33 " "26,27,29,30,32,33 " "26,27,29,31,32,33 " "26,27,30,31,32,33 " "26,28,29,30,31,32 " "26,28,29,30,31,33 " "26,28,29,30,32,33 " "26,28,29,31,32,33 " "26,28,30,31,32,33 " "26,29,30,31,32,33 " "27,28,29,30,31,32 " "27,28,29,30,31,33 " "27,28,29,30,32,33 " "27,28,29,31,32,33 " "27,28,30,31,32,33 " "27,29,30,31,32,33 " "28,29,30,31,32,33 " 读者可能很容易看到会多一个英文的引号,这个怎么解决呢? https://zhidao.baidu.com/question/7939187.html 用vb读写文件时,写成的文本文件每行都有双引号,怎么才能把双引号去掉啊? 怎样写的文件,才能没有双引号啊? wangtk1982 2006-05-30 使用print语句 不用用write 本回答由提问者推荐 3 评论(1) 分享 举报 monkywin 2006-05-30 用print写入文件。 用input读取文本。 修正之后: VERSION 5.00 Begin VB.Form Form1 Caption = "Form1" ClientHeight = 12825 ClientLeft = 450 ClientTop = 615 ClientWidth = 14535 LinkTopic = "Form1" ScaleHeight = 12825 ScaleWidth = 14535 Begin VB.TextBox Text2 BeginProperty Font Name = "宋体"
2023-03-02 11:14:09 166KB 杂质
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基于CNN训练的一套 "端到端" 的验证码识别模型,使用深度学习+训练数据+大量计算力,纯数字识别率高达 99.99%,数字+字母识别率 96%
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swjtu数字逻辑与计算机组成原理实验8报告
2023-02-28 22:38:35 3.49MB 数电
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用于asp的阿里云短信接收发送服务,官方只提供php,.net 等版本,自己开发了一套asp版本,如有不足的地方,欢迎大家提出,我再修改
2023-02-27 22:56:29 3KB 短信验证码
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第11章验证本章介绍了如何编写测试验证程序(test bench)。测试验证程序用于测试和验证设计的正确性。Verilog HDL提供强有力的结构来说明测试验证
2023-02-27 15:15:52 473KB 如何编写测试验证程序(test bench)
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