车牌识别--S5PV210測试第二次优化
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
- 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 ...
- 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 ...
- 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 ...
- 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 ...
- 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 ...
- 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 ...
- 【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 ...
- 【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 ...
- 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
- git error: object file .git/objects/b9/e269f50db2a3415cc8ad5ba40b82b9b6a13d45 is empty
错误现象: 解决方法: 1. find .git/objects/ -type f -empty | xargs rm 2. git fetch -p 3. git fsck --full
- Activity 中的Toast在Activity销毁后报错，解决方法，把context改成应用的
ToastUtil.showShort(context, R.string.connection_fail); 改成 ToastUtil.showShort(BusinesslinkApplicati ...
- 特定位取反（js实现）
去华为面试的时候.没有做好准备工作.面试的流程没有问清也没有查,结果一过去就让上机做题,着实有点措手不及.笔者是擅长前端的Java Webproject师啊,主要的底层编程知识早已生疏了.机试题碰到了 ...
- wxWidgets笔记_1_linux环境下wxwidgets的安装与配置
linux下wxwidgets环境的安装与配置 一．建立目标文件夹(自己定义) mkdir /opt/SCOTT 二．安装wxWidgets 1.wxWidgets版本号能够选用wxGTK-2.8.1 ...
- Linux常用的安全工具
Linux常用的安全工具 "工欲善其事,必先利其器".作为一个合格的系统管理员,要应对可能发生的安全事件,掌握Linux下各种必须的安全工具是首要大事.本文主要介绍Linux上常用 ...
- 开源计算机集群监控Ganglia应用视频
Ganglia源于Berkeley发起的一个开源集群监视项目,设计用于监测数上千节点的计算机集群.它包含gmond.gmetad以及一个Web前端.可以用来监控系统处理器 .内存.硬盘 I/O.网络流 ...
- 用Linux建立多应用系统备份服务器
用Linux建立多应用系统备份服务器 本文旨在结合自己的工作实际,利用LinuxFTP服务器建立了一个多系统备份服务器异地备份策略. 1 建立LinuxFTP服务器 使用了Red Hat Enterp ...
- ES6学习基础
1.let和const 与var不同,新的变量声明方式带来了一些不一样的特性,其中最重要的两个特性就是提供了块级作用域与不再具备变量提升 { let a = 20; } console.log(a); ...
- node.js状态码
100——客户必须继续发出请求101——客户要求服务器根据请求转换HTTP协议版本200——交易成功201——提示知道新文件的URL202——接受和处理.但处理未完成203——返回信息不确定或不完整2 ...
- ldd---程序所需要的动态链接库
ldd本身不是一个程序,而仅是一个shell脚本:ldd可以列出一个程序所需要得动态链接库(so) [root@xiaolizi ~ ]$ ldd /usr/bin/ls linux-vdso.so. ...