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alpha<b>BE</b>t

  • 使用说明 使用时打开此例题目录下pic中的图片

    使用说明 使用时打开此例题目录下pic中的图片,然后依次单击按钮“转”、“1”、“2”、“3”、“4”和“5”,就可以实现精确的车牌定位。 具体步骤 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。

    标签: pic 使用说明 目录

    上传时间: 2014-01-17

    上传用户:851197153

  • Trie树既可用于一般的字典搜索

    Trie树既可用于一般的字典搜索,也可用于索引查找。对于给定的一个字符串a1,a2,a3,...,an.则采用TRIE树搜索经过n次搜索即可完成一次查找。不过好像还是没有B树的搜索效率高,B树搜索算法复杂度为logt(n+1/2).当t趋向大,搜索效率变得高效。怪不得DB2的访问内存设置为虚拟内存的一个PAGE大小,而且帧切换频率降低,无需经常的PAGE切换。

    标签: Trie 搜索

    上传时间: 2016-07-06

    上传用户:sk5201314

  • 集成温度传感器实质上是一种半导体集成电路

    集成温度传感器实质上是一种半导体集成电路,它是利用晶体管的b-e 结压降的不饱和 值VBE与热力学温度T 和通过发射极电流I 的下述关系实现对温度的检测:

    标签: 集成 温度传感器 半导体集成电路

    上传时间: 2016-07-11

    上传用户:363186

  • The task of clustering Web sessions is to group Web sessions based on similarity and consists of max

    The task of clustering Web sessions is to group Web sessions based on similarity and consists of maximizing the intra- group similarity while minimizing the inter-group similarity. The first and foremost question needed to be considered in clustering W b sessions is how to measure the similarity between Web sessions.However.there are many shortcomings in traditiona1 measurements.This paper introduces a new method for measuring similarities between Web pages that takes into account not only the URL but also the viewing time of the visited web page.Yhen we give a new method to measure the similarity of Web sessions using sequence alignment and the similarity of W eb page access in detail Experiments have proved that our method is valid and e币cient.

    标签: sessions clustering similarity Web

    上传时间: 2014-01-11

    上传用户:songrui

  • flash 键盘音效取自win2000系统ding.wav

    flash 键盘音效取自win2000系统ding.wav,经过CoolEdit处理成音阶,在Flash中导入在相应按钮上。 没有难度,就是耐心一点,成绩不错哦! 对应表: 低音G-a #G-w A-s #A-e B-d 中音C-f #C-t D-g #D-y E-h F-j #F-i G-k #G-o A-l #A-p B- 高音C-1 D-2 E-3 F-4 G-5 A-6 B-7 C(high)-8 #C-c #D-v #F-b #G-n #A-m

    标签: flash 2000 ding win

    上传时间: 2014-02-06

    上传用户:ljmwh2000

  • 一个神经网络的工具箱

    一个神经网络的工具箱,用于M a t l a b中

    标签: 神经网络 工具箱

    上传时间: 2016-09-28

    上传用户:zhanditian

  • Part2 using C++ Operators if you are dreading this chapter because you don t like math_relax. c++

    Part2 using C++ Operators if you are dreading this chapter because you don t like math_relax. c++ does all your math for you!it is a miscon ception that you have to be good at math to understand how to program compters.

    标签: math_relax Operators you dreading

    上传时间: 2016-10-16

    上传用户:tonyshao

  • Part5 using C++ Operators if you are dreading this chapter because you don t like math_relax. c++

    Part5 using C++ Operators if you are dreading this chapter because you don t like math_relax. c++ does all your math for you!it is a miscon ception that you have to be good at math to understand how to program compters.

    标签: math_relax Operators you dreading

    上传时间: 2014-01-22

    上传用户:wlcaption

  • Atheros Communications AR6001 WLAN Driver for SDIO installation Read Me March 26,2007 (based on

    Atheros Communications AR6001 WLAN Driver for SDIO installation Read Me March 26,2007 (based on k14 fw1.1) Windows CE Embedded CE 6.0 driver installation. 1. Unzip the installation file onto your system (called installation directory below) 2. Create an OS design or open an existing OS design in Platform Builder 6.0. a. The OS must support the SD bus driver and have an SD Host Controller driver (add these from Catalog Items). b. Run image size should be set to allow greater than 32MB. 3. a. From the Project menu select Add Existing Subproject... b. select AR6K_DRV.pbxml c. select open This should create a subproject within your OS Design project for the AR6K_DRV driver. 4. Build the solution.

    标签: Communications installation Atheros Driver

    上传时间: 2016-10-27

    上传用户:hebmuljb

  • (1) 设计算法并编制程序

    (1) 设计算法并编制程序,进行调试。 (2) 用调试好的程序解决如下问题: 计算 的近似值,取精度为 步骤一、先编制计算函数值的程序; 步骤二、执行编制好的Romberg算法,输出T。 (3)用Romberg算法和复合Simpson公式分别计算 的近似值, 其中b分别取为b=0.1, 0.3, 0.5, 0.7, 0.9

    标签: 计算 编制 程序

    上传时间: 2014-12-03

    上传用户:四只眼