优化：

1、RGB转HSV 浮点运算改成定点运算；

2、匹配模板由图片改成C语言数组；

3、优化測试BMP车牌图片读取（两层for循环改为一层for循环）。

总体相比优化之前时间降低110ms左右。

640x480: 160ms 左右

320x240: 55ms 左右

[liujia@210]#./car test/1.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

ÔÁ A F Q 7 8 7

Total Time: time use:158ms

[liujia@210]#./car test/2.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

ÔÁ A 8 S 3 0 8

Total Time: time use:162ms

[liujia@210]#./car test/3.bmp

BMP Size:230454, Info_length:54, H:320, W:240

The Car ID IS:

ÔÁ A G F 7 5 1

Total Time: time use:57ms

[liujia@210]#./car test/4.bmp

BMP Size:230454, Info_length:54, H:320, W:240

The Car ID IS:

ÔÁ A 8 S 3 0 8

Total Time: time use:55ms

[liujia@210]#./car test/5.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

ÔÁ M 0 7 3 6 9

Total Time: time use:141ms

[liujia@210]#./car test/6.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

ÔÁ A 6 Y 2 6 8

Total Time: time use:163ms

[liujia@210]#./car test/7.bmp

BMP Size:230454, Info_length:54, H:320, W:240

The Car ID IS:

ÔÁ A 9 X 6 6 7

Total Time: time use:59ms

[liujia@210]#./car test/8.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

ÔÁ A P 6 8 3 8

Total Time: time use:186ms

[liujia@210]#./car test/9.bmp

BMP Size:879414, Info_length:54, H:640, W:458

The Car ID IS:

ÔÁ A F N 5 5 3

Total Time: time use:167ms

[liujia@210]#./car test/10.bmp

BMP Size:1004214, Info_length:54, H:640, W:523

The Car ID IS:

Íî J 0 8 0 3 6

Total Time: time use:169ms

[liujia@210]#./car test/11.bmp

BMP Size:1035978, Info_length:54, H:665, W:519

The Car ID IS:

ËÕ B H 6 0 8 2

Total Time: time use:172ms

[liujia@210]#./car test/12.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

ÔÁ A F Z 9 0 5

Total Time: time use:172ms

[liujia@210]#./car test/13.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

ÔÁ A A D 2 6 3

Total Time: time use:172ms

眼下影响时间的问题，已经不是浮点了。而是大量的for循环中的运算，60%的时间都使用在车牌定位中。 一旦车牌定位后。后面的字符切割和匹配使用10ms左右时间。就能够完毕。

对照測试使用的笔记本I3-380cpu，虚拟机执行结果

640X480：27ms左右

320x240:    9ms左右

root@lj:/work/carid/0532# ./car test/1.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

▒▒ A F Q 7 8 7

Total Time: time use:27ms

root@lj:/work/carid/0532# ./car test/2.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

▒▒ A 8 S 3 0 8

Total Time: time use:103ms

root@lj:/work/carid/0532# ./car test/3.bmp

BMP Size:230454, Info_length:54, H:320, W:240

The Car ID IS:

▒▒ A G F 7 5 1

Total Time: time use:9ms

root@lj:/work/carid/0532# ./car test/4.bmp

BMP Size:230454, Info_length:54, H:320, W:240

The Car ID IS:

▒▒ A 8 S 3 0 8

Total Time: time use:9ms

root@lj:/work/carid/0532# ./car test/5.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

▒▒ M 0 7 3 6 9

Total Time: time use:23ms

root@lj:/work/carid/0532# ./car test/6.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

▒▒ A 6 Y 2 6 8

Total Time: time use:33ms

root@lj:/work/carid/0532# ./car test/7.bmp

BMP Size:230454, Info_length:54, H:320, W:240

The Car ID IS:

▒▒ A 9 X 6 6 7

Total Time: time use:9ms

root@lj:/work/carid/0532# ./car test/8.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

▒▒ A P 6 8 3 8

Total Time: time use:28ms

root@lj:/work/carid/0532# ./car test/9.bmp

BMP Size:879414, Info_length:54, H:640, W:458

The Car ID IS:

▒▒ A F N 5 5 3

Total Time: time use:25ms

root@lj:/work/carid/0532# ./car test/10.bmp

BMP Size:1004214, Info_length:54, H:640, W:523

The Car ID IS:

▒▒ J 0 8 0 3 6

Total Time: time use:27ms

root@lj:/work/carid/0532# ./car test/11.bmp

BMP Size:1035978, Info_length:54, H:665, W:519

The Car ID IS:

▒▒ B H 6 0 8 2

Total Time: time use:27ms

root@lj:/work/carid/0532# ./car test/12.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

▒▒ A F Z 9 0 5

Total Time: time use:27ms

root@lj:/work/carid/0532# ./car test/13.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

▒▒ A A D 2 6 3

Total Time: time use:25ms

对照ME865（OMAP4430）

640x480:130ms左右

320x240：50ms左右

root@edison:/data # ./car /sdcard/test/1.bmp

./car /sdcard/test/1.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

粤 A F Q 7 8 7

Total Time: time use:122ms

root@edison:/data # ./car /sdcard/test/2.bmp

./car /sdcard/test/2.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

粤 A 8 S 3 0 8

Total Time: time use:125ms

root@edison:/data # ./car /sdcard/test/3.bmp

./car /sdcard/test/3.bmp

BMP Size:230454, Info_length:54, H:320, W:240

The Car ID IS:

粤 A G F 7 5 1

Total Time: time use:50ms

root@edison:/data # ./car /sdcard/test/4.bmp

./car /sdcard/test/4.bmp

BMP Size:230454, Info_length:54, H:320, W:240

The Car ID IS:

粤 A 8 S 3 0 8

Total Time: time use:42ms

root@edison:/data # ./car /sdcard/test/5.bmp

./car /sdcard/test/5.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

粤 M 0 7 3 6 9

Total Time: time use:94ms

root@edison:/data # ./car /sdcard/test/6.bmp

./car /sdcard/test/6.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

粤 A 6 Y 2 6 8

Total Time: time use:134ms

root@edison:/data # ./car /sdcard/test/7.bmp

./car /sdcard/test/7.bmp

BMP Size:230454, Info_length:54, H:320, W:240

The Car ID IS:

粤 A 9 X 6 6 7

Total Time: time use:51ms

root@edison:/data # ./car /sdcard/test/8.bmp

./car /sdcard/test/8.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

粤 A P 6 8 3 8

Total Time: time use:132ms

root@edison:/data # ./car /sdcard/test/9.bmp

./car /sdcard/test/9.bmp

BMP Size:879414, Info_length:54, H:640, W:458

The Car ID IS:

粤 A F N 5 5 3

Total Time: time use:124ms

root@edison:/data # ./car /sdcard/test/10.bmp

./car /sdcard/test/10.bmp

BMP Size:1004214, Info_length:54, H:640, W:523

The Car ID IS:

皖 J 0 8 0 3 6

Total Time: time use:171ms

root@edison:/data # ./car /sdcard/test/11.bmp

./car /sdcard/test/11.bmp

BMP Size:1035978, Info_length:54, H:665, W:519

The Car ID IS:

苏 B H 6 0 8 2

Total Time: time use:207ms

root@edison:/data # ./car /sdcard/test/12.bmp

./car /sdcard/test/12.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

粤 A F Z 9 0 5

Total Time: time use:204ms

root@edison:/data # ./car /sdcard/test/13.bmp

./car /sdcard/test/13.bmp

BMP Size:921654, Info_length:54, H:640, W:480

The Car ID IS:

粤 A A D 2 6 3

Total Time: time use:138ms

车牌识别--S5PV210測试第二次优化的更多相关文章

  1. 车牌识别--S5PV210測试

    cortex-A8(S5PV210) Linux-3.9.7 arm-linux-gcc 4.5.1(FriendlyARM) 根文件系统:NFS 软浮点执行结果: [liujia@210]#./so ...

  2. 泛泰A820L (高通MSM8660 cpu) 3.4内核的CM10.1(Android 4.2.2) 測试版第二版

    欢迎关注泛泰非盈利专业第三方开发团队 VegaDevTeam  (本team 由 syhost suky zhaochengw(z大) xuefy(大星星) tenfar(R大师) loogeo cr ...

  3. QTP,自己主动化測试学习笔记，六月九号

    測试自己主动化实现的两个难点设计--功能分解 实现--对象的识别 測试自己主动化实现的两个难点-功能分解 清晰画出业务流程图 依据业务流程分解业务功能.能够被复用的功能也要被分解出来. 依照路径覆盖的 ...

  4. 车牌识别--OMAP4430处理器上測试

    OMAP4430(ME865) arm-linux-gcc 4.5.1(FriendlyARM) 软浮点执行结果: root@lj:/workspace/carid# arm-linux-gcc ca ...

  5. 深度学习之Matlab 转C++在iOS上測试CNN手型识别

    1 前言 在上一篇Blog.我介绍了在iOS上执行CNN的一些方法. 可是,一般来说.我们须要一个性能强劲的机器来跑CNN,我们仅仅只是须要将得到的结果用于移动端. 之前在Matlab使用UFLDL的 ...

  6. 真机測试时的错误:No matching provisioning profiles found

    1.出现错误的原因是这种---- 公司接收一个外包项目,原来做真机測试的时候,用的是公司申请的苹果开发人员账号.如今项目结束了,准备上线,但客户要求使用客户自己的苹果开发人员是账号上线,于是就用客户的 ...

  7. 【金阳光測试】基于控件核心技术探讨---Android自己主动化系列（2）---2013年5月

    第一讲分享了下安卓自己主动化一些概况和一些自己主动化框架现状和技术可以解决什么样的问题. 这次课就深入到android世界里面.遨游.翱翔.深入了解自己主动化測试核心技术. 搞过编程开发的同学听到in ...

  8. 【金阳光測试】大话Android自己主动化測试--Android自己主动化系列（1）--金阳光于2013年4月份

    Android自己主动化測试框架和工具在四年多的发展日趋成熟. 从五年前的第一代自己主动化架构演进到眼下第四代(本系列讲座第7篇后将具体剖析第三代和第四代自己主动化框架)从曾经最早谷歌推崇的monke ...

  9. EasyPR--一个开源的中文车牌识别系统

    我正在做一个开源的中文车牌识别系统,Git地址为:https://github.com/liuruoze/EasyPR. 我给它取的名字为EasyPR,也就是Easy to do Plate Reco ...

随机推荐

  1. 【APP自动化】Appium Android 元素定位方法 原生+H5

    参考资料: http://blog.csdn.net/vivian_ljx/article/details/54410024

  2. 今日SGU 5.26

    #include<bits/stdc++.h> #define de(x) cout<<#x<<"="<<x<<endl ...

  3. HTTP状态码以及其含义大全 _IT技术小趣屋

    原文:HTTP状态码以及其含义大全 _IT技术小趣屋 HTTP状态码(英语:HTTP Status Code)是用以表示网页服务器超文本传输协议响应状态的3位数字代码.我们在开发过程中比较常见的状态码 ...

  4. hadoop 2.5.1 、Hadoop 2.7 Hadoop 2.6

    1  rpm 安装     yum install rpm 2  JDK安装    << 一定要先删除JDK!!!!!!>>       rpm -qa | grep java ...

  5. XMPP使用简单介绍--登录

    在现阶段的通信服务中,各种标准都有.因此会出现无法实现相互连通,而XMPP(Extensible Message and presence Protocol)协议的出现,实现了整个及时通信服务协议的互 ...

  6. acme.sh建立SAN证书 和泛域名证书

    文件来源 https://github.com/Neilpang/acme.sh/wiki/How-to-issue-a-cert domain=$domain time=`date +%Y%m%d% ...

  7. Java基本数据类型及字节

    1.基本类型可以分为三类,字符类型char,布尔类型boolean以及数值类型byte.short.int.long.float.double.数值类型又可以分为整数类型byte.short.int. ...

  8. 智课雅思短语---二、exert positive/ negative effects on…

    智课雅思短语---二.exert positive/ negative effects on… 一.总结 一句话总结:对…产生有利/不利的影响 1.the advantages far outweig ...

  9. 用Struts2搭建一个登录例子【本人亲测好用】

    今天尝试struts2的搭建,遇到不少的问题,终于一一解决,逛了很多地方,最终完成搭建 1.首先要下载struts2的一些组件,我下载的是版本2.3.4.1,Eclipse是4.6版本的.由于版本的不 ...

  10. 传说用户发来的请求是在JIoEndpoint的accept函数中接收的,是tomact与外界交互的分界点

    传说用户发来的请求是在JIoEndpoint的accept函数中接收的, 这是tomact与外界交互的分界点,所以来研究一下, >>>>>>>>> ...