<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[feixuedudiao的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/feixuedudiao</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; feixuedudiao]]></copyright><item><title><![CDATA[基于android studio上OpenCL编译环境配置]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/100581508</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/100581508</guid><author>feixuedudiao</author><pubDate>Fri, 06 Sep 2019 16:16:20 +0800</pubDate><description><![CDATA[一、前期准备(以华为手机为例)

1. 先在手机等移动端设备上安装opencl-z，检测设备所支持的opencl版本等信息

2. 连接手机等移动设备到ubuntu系统电脑，在root用户下输入adb shell 进入手机等移动设备的root环境；

3. 将手机等移动设备中opencl的so包用命令adb pull 拷贝到本地，命令具体如下：adb pull /system/vendor/lib...]]></description><category></category></item><item><title><![CDATA[Windows Defender Antivirus Service禁用方法]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/85761583</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/85761583</guid><author>feixuedudiao</author><pubDate>Fri, 04 Jan 2019 10:54:24 +0800</pubDate><description><![CDATA[该服务在占用cp及网络资源及磁盘太多，导致电脑运用非常卡顿，影响工作性能及体验，也尝试了诸如修改注册表等多种方法来解决该问题但都未果，偶然谷歌到下面解决方法，比较实用就记录下了。

参考：https://answers.microsoft.com/zh-hans/protect/forum/protect_defender-protect_start-windows_10/%E6%80%8E%E6...]]></description><category></category></item><item><title><![CDATA[【C/C++】文件夹的打开、遍历、删除、创建、关闭操作汇总]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/74612565</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/74612565</guid><author>feixuedudiao</author><pubDate>Thu, 06 Jul 2017 21:09:57 +0800</pubDate><description><![CDATA[转自：http://sodino.com/2015/03/09/c-directory-io/






打开文件夹遍历文件夹下的内容

读取文件夹下的子文件(夹)
文件夹位置指针的操作
遍历、过滤文件夹下的子文件(夹)

文件夹关闭删除文件夹创建文件夹

需要用到的头文件为：
#include 
#include 

打开文件夹

DIR *opend]]></description><category></category></item><item><title><![CDATA[用VisualGDB在vs2013在linux服务器上编译代码的3073问题]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/72188555</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/72188555</guid><author>feixuedudiao</author><pubDate>Mon, 15 May 2017 19:32:34 +0800</pubDate><description><![CDATA[参考：http://blog.youkuaiyun.com/csdliqi/article/details/45643235

error MSB3073: 命令“"C:\Program Files\Sysprogs\VisualGDB\VisualGDB.exe" /clean "F:\ProjectTest\EmbeddedProject1\EmbeddedProject1\EmbeddedProje]]></description><category></category></item><item><title><![CDATA[c++中operator 操作]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/54097033</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/54097033</guid><author>feixuedudiao</author><pubDate>Thu, 05 Jan 2017 19:36:48 +0800</pubDate><description><![CDATA[在扣opencv源码时Point2f里面的部分代码用到了operator操作，对里面的原理百思不理其解，于是就写了示例。中间有部分有问题，还不明白原因，给注释出来了，如有哪位博友知道，可以给点指点，不胜感激。
#include 
using namespace std;

class Point
{
public:
	int x, y;
	Point(){ x = 0; y = 0; }
	Po]]></description><category></category></item><item><title><![CDATA[win7下64bit,运行libsvm2.90中setup.py时出现unable to find vcvarsall.bat 的解决方法]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/51970352</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/51970352</guid><author>feixuedudiao</author><pubDate>Wed, 20 Jul 2016 17:23:09 +0800</pubDate><description><![CDATA[参考http://bbs.youkuaiyun.com/topics/390450892?page=1 中6楼
1.用cmd进入dos命令提示行；
2.用命令cd 切换到python2.7安装路径；
3.输入命令：


会出现：error:unable to find vcvarsall.bat
4.解决方法：
SET VS90COMNTOOLS=%VS100COMNTOOLS%

5.重]]></description><category></category></item><item><title><![CDATA[在centos中运行java命令时出现Error: Could not find or load main class XXX问题的解决方法]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/49150109</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/49150109</guid><author>feixuedudiao</author><pubDate>Thu, 15 Oct 2015 11:18:21 +0800</pubDate><description><![CDATA[在centos中运行java命令时出现Error: Could not find or load main class XXX问题的一种解决方法：
java -cp . CLASS


参考：
http://stackoverflow.com/questions/7485670/error-could-not-find-or-load-main-class]]></description><category></category></item><item><title><![CDATA[centos6.7 64位服务器安装opencv-2.4.9]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/49104347</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/49104347</guid><author>feixuedudiao</author><pubDate>Tue, 13 Oct 2015 21:18:49 +0800</pubDate><description><![CDATA[一、整个过程分三步
1.      安装centos基本安装包
2.      安装ffmpeg相关依赖包及ffmpeg
3.      安装opencv
二、具体步骤
1. 安装centos基本安装包
yum install glibc gcc gcc-c++ autoconfautomake libtool git make nasm pkgconfig
yum install ]]></description><category></category></item><item><title><![CDATA[如何在Linux上安裝JDK(Java Development Kit)？]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/48625931</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/48625931</guid><author>feixuedudiao</author><pubDate>Mon, 21 Sep 2015 14:21:44 +0800</pubDate><description><![CDATA[转自：http://magiclen.org/linux-jdk/








JDK為開發Java程式語言必備的工具，在Linux上通常會使用OpenJDK來作為預設的Java開發工具以及執行環境(Runtime)，OpenJDK的取得十分方便，但是套件過於零散，難以手動更新。更新JDK的版本除了可以讓開發者使用到最新的Java函式庫外，就連執行Java程式時的效能、穩定性]]></description><category></category></item><item><title><![CDATA[关于在linux平台或cygwin平台运行opencv出现Illege instruction(core dump)问题的缘由]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/48287927</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/48287927</guid><author>feixuedudiao</author><pubDate>Tue, 08 Sep 2015 10:49:32 +0800</pubDate><description><![CDATA[在linux或cygwin平台运行opencv程序时，会出现Illege instruction (core dump)问题，原因的解释来自：
http://www.mesimian.com/installing-opencv/



If you happen to get “Illegal instruction” while running applications using O]]></description><category></category></item><item><title><![CDATA[请教winGDB+VS2010配置第三方库方法]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/48162483</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/48162483</guid><author>feixuedudiao</author><pubDate>Tue, 01 Sep 2015 19:57:47 +0800</pubDate><description><![CDATA[本人因项目需要，目前实现windows及模型linux的cygwin跨平台交叉编程，在vs中装了插件WinGDB，但实际过程中用到了第三方库，哪位高手知道如何配置，请给留言，或发邮件与feixuedudiao@gmail.com。谢谢。]]></description><category></category></item><item><title><![CDATA[java借助于JNI调用c/c++动态链接库]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/47297531</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/47297531</guid><author>feixuedudiao</author><pubDate>Wed, 05 Aug 2015 16:09:43 +0800</pubDate><description><![CDATA[最近，因项目需要，项目组的java组要调用图像算法的c++动态链接库。其他的描述省略，直接进入正文。
整个基本步骤如下：
1.在vs中生成第三方动态链接库mydll.dll；
2.编写java类，并生成.h头文件；
3.在2中生成的.h头文件中的函数，借助于windows中的LoadLibrary()函数和GetProcAddress()，显式实现调用1中生成的第三方动态链接库，并在vs中]]></description><category></category></item><item><title><![CDATA[显示调用c++动态链接库]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/47188639</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/47188639</guid><author>feixuedudiao</author><pubDate>Sat, 01 Aug 2015 18:11:34 +0800</pubDate><description><![CDATA[1.动态链接库生成
//operator.h

#ifndef OPERATOR_H
#define OPERATOR_H

#include 
#include 

#ifdef __cplusplus
extern "C"
{
#endif
int Add(int a, int b);
int Sub(int a, int b);

#ifdef __cplusplus
}
#endif
#]]></description><category></category></item><item><title><![CDATA[代码调试问题汇集]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/45057173</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/45057173</guid><author>feixuedudiao</author><pubDate>Wed, 15 Apr 2015 13:16:13 +0800</pubDate><description><![CDATA[﻿﻿

1. c++调用c函数时，出现errorLNK2019:
 unresolved external symbol "int __cdecl

解决方法：

C++调用C链接库会出现的问题 


（非本人原创，在此注明，以表对原作者的敬佩http://blog.163.com/sean_1010/blog/static/11080322200952633111975/）]]></description><category></category></item><item><title><![CDATA[YUV转为IplImage格式(I420和YV12)]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/44873411</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/44873411</guid><author>feixuedudiao</author><pubDate>Sat, 04 Apr 2015 15:37:17 +0800</pubDate><description><![CDATA[http://www.haodaima.net/art/2662859


一、YUV简介
    一般来说，直接采集到的视频数据是RGB24的格式，RGB24一帧的大小size=width×heigth×3 Byte，RGB32的size=width×heigth×4 Byte，如果是I420（即YUV标准格式4：2：0）的数据量是 size=width×heigth×1.5 Byte。]]></description><category></category></item><item><title><![CDATA[Cross Correlation]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/44346465</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/44346465</guid><author>feixuedudiao</author><pubDate>Tue, 17 Mar 2015 19:28:32 +0800</pubDate><description><![CDATA[﻿﻿
http://paulbourke.net/miscellaneous/correlate/
Cross correlation is a standard method of estimating the degree to which two series are correlated. Consider two series x(i) and y(i) where i=0,1,2.]]></description><category></category></item><item><title><![CDATA[关于opencv中cvtcolor函数的code参数用CV_BGR2YUV与CV_BGR2YCrCb的了解]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/39339451</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/39339451</guid><author>feixuedudiao</author><pubDate>Wed, 17 Sep 2014 11:08:49 +0800</pubDate><description><![CDATA[http://blog.sina.com.cn/s/blog_4665b35b0100vf6r.html]]></description><category></category></item><item><title><![CDATA[C语言字符串操作总结大全(超详细)]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/38370893</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/38370893</guid><author>feixuedudiao</author><pubDate>Mon, 04 Aug 2014 16:07:22 +0800</pubDate><description><![CDATA[转载：http://www.jb51.net/article/37410.htm




1）字符串操作 
strcpy(p, p1) 复制字符串 
strncpy(p, p1, n) 复制指定长度字符串 
strcat(p, p1) 附加字符串 
strncat(p, p1, n) 附加指定长度字符串 
strlen(p) 取字符串长度 
strcmp(p, p1) 比较字]]></description><category></category></item><item><title><![CDATA[15 Free eBooks on C Programming]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/37901591</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/37901591</guid><author>feixuedudiao</author><pubDate>Thu, 17 Jul 2014 10:10:41 +0800</pubDate><description><![CDATA[If we talk about the most used programming languages in electronics engineering, like Python, C is probably one of the most used language in electronics.
 So now its time for some free stuff on C Pro]]></description><category></category></item><item><title><![CDATA[随机化算法之取样问题]]></title><link>https://blog.youkuaiyun.com/feixuedudiao/article/details/37873709</link><guid>https://blog.youkuaiyun.com/feixuedudiao/article/details/37873709</guid><author>feixuedudiao</author><pubDate>Wed, 16 Jul 2014 11:00:04 +0800</pubDate><description><![CDATA[转自：http://www.it165.net/pro/html/201403/10045.html

一、简单的随机抽样：一个总体的个数为N，如果通过逐个抽取的方法从中抽取

一个样本，且每次抽取时各个个体被抽到的概率相等，则这样的抽样为简单的随机抽样。

例如，从含有6个个体的总体中抽取一个容量为2的样本，则在抽样过程

中某个个体a被抽到的概率是多少？

2/6

 ]]></description><category></category></item></channel></rss>