1.24位真彩色->256色灰度图。 2.预处理:中值滤波。 3.二值化:用一个初始阈值T对图像A进行二值化得到二值化图像B。 初始阈值T的确定方法是:选择阈值T=Gmax-(Gmax-Gmin)/3,Gmax和Gmin分别是最高、最低灰度值。 该阈值对不同牌照有一定的适应性,能够保证背景基本被置为0,以突出牌照区域。 4.削弱背景干扰。对图像B做简单的相邻像素灰度值相减,得到新的图像G,即Gi,j=|Pi,j-Pi,j-1|i=0,1,…,439 j=0,1,…,639Gi,0=Pi,0,左边缘直接赋值,不会影响整体效果。 5.用自定义模板进行中值滤波 区域灰度基本被赋值为0。考虑到文字是由许多短竖线组成,而背景噪声有一大部分是孤立噪声,用模板(1,1,1,1,1)T对G进行中值滤波,能够得到除掉了大部分干扰的图像C。 6.牌照搜索:利用水平投影法检测车牌水平位置,利用垂直投影法检测车牌垂直位置。 7.区域裁剪,截取车牌图像。
上传时间： 2014-01-08
上传用户：songrui
This ActiveX control and Demo will allow you to dock your toolbars/forms to a mdiform much in the way in which Visual C++ allows you to. 象Vc++一样使用多文本窗体
标签： toolbars ActiveX control mdiform
上传时间： 2015-09-14
上传用户：asdfasdfd
Listed below are the typographical conventions used in this guide. – Example C++ code and commands to be typed by the user are in non-bold characters in typewriter font. – Items where the user has to supply a name or number are given in lower-case italic characters in typewriter font. – Sections marked with a ‡ describe features that are also available in ANSI C.
标签： typographical conventions commands Example
上传时间： 2013-12-20
上传用户：xiaoxiang
This note describes some key aspects of what C++ is and of how C++ has developed over the years. The spective is that of an experienced C++ user looking at C++ as a practical tool. No attempts are made to compare C++ to other languages, though I have tried to answer some questions that I have often heard asked by Lisp programmers.
标签： describes developed aspects years
上传时间： 2015-09-15
上传用户：haoxiyizhong
人脸检测的C/C++源代码，曾发表于 OPENCV 的 MAILING LIST，主要是对OPENCV 3.1 版本发布的代码做了一些速度上的优化，并且解决了内存泄漏的问题。这个程序所使用的 Paul Viola 提出（该论文“Rapid Object Detection using a Boosted Cascade of Simple Features”发表在 CVPR 01）的 Ada Boosted Cascade 算法可以说是目前最好最快的目标检测算法。
上传时间： 2014-01-11
上传用户：日光微澜
BNB20 Finds the constrained minimum of a function of several possibly integer variables. ％ Usage: [errmsg,Z,X,t,c,fail] = ％ BNB20(fun,x0,xstatus,xlb,xub,A,B,Aeq,Beq,nonlcon,settings,options,P1,P2,...) ％ ％ BNB solves problems of the form: ％ Minimize F(x) subject to: xlb <= x0 <=xub ％ A*x <= B Aeq*x=Beq ％ C(x)<=0 Ceq(x)=0 ％ x(i) is continuous for xstatus(i)=0 ％ x(i) integer for xstatus(i)= 1 ％ x(i) fixed for xstatus(i)=2 ％
标签： constrained variables function possibly
上传时间： 2014-01-13
上传用户：youth25
VC技术内幕第五版(英文)The 6.0 release of Visual C++ shows Microsoft s continued focus on Internet technologies and COM, which are key components of the new Windows Distributed interNet Application Architecture (DNA). In addition to supporting these platform initiatives, Visual C++ 6.0 also adds an amazing number of productivity-boosting features such as Edit And Continue, IntelliSense, AutoComplete, and code tips. These features take Visual C++ to a new level. We have tried to make sure that this book keeps you up to speed on the latest technologies being introduced into Visual C++.
标签： technologie Microsoft continued Internet
上传时间： 2014-11-22
上传用户：ggwz258
If we have two individually sorted vectors "a" and "b" but they are not sorted with respect to each other and we want to merge them into vector "c" such that "c" is also a sorted vector. Then c=mergesorted(a,b) can be used.
标签： sorted individually respect vectors
上传时间： 2015-09-23
上传用户：comua
A星算法寻找路径的程序，是用C++的，仅供大家参考
上传时间： 2015-09-29
上传用户：225588
CCS编程环境 使用的是汇编加C的混合编程方法： The programme of the Correlation Algorithm. Using INT2 to get the input signal. Array x, in first step, is the input signal produced by programme, in next step, is the input signal get from A/D, the length is 128, 32-bit floating point. Array y, in first step, is the input signal produced by programme, in next step, is the input signal get from A/D, the length is 128, 32-bit floating point. Array cor is the Correlation result, the length is 255, 32-bit floating point.
标签： Correlation Algorithm programme the
上传时间： 2013-12-21
上传用户：leixinzhuo
