ICMP(錯誤偵測與回報機制)

http://www.pcnet.idv.tw/pcnet/network/network_ip_icmp.htm

virtual box in fedora 14

reference
http://linux-cisco.blogspot.com/2008/01/fedora-8virtualbox.html

>rpm -ivh VirtualBox-4.0-4.0.2_69518_fedora14-1.i686.rpm


錯誤：相依性偵測失敗：
    libQtCore.so.4 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要
    libQtGui.so.4 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要
    libQtNetwork.so.4 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要
    libQtOpenGL.so.4 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要
    libSDL-1.2.so.0 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要





download "oracle_vbox.asc" key for virtualbox:
http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc

>su - apt-key add oracle_vbox.asc

否則會出現類似警告
warning: VirtualBox-3.2-3.2.6_63112_fedora13-1.i686.rpm: Header V4 DSA/SHA1 Signature, key ID 98ab5139: NOKEY



update fedora:
>yum update

install Qt:
>yum install qt
>yum install qt-devel

錯誤：相依性偵測失敗：
    libSDL-1.2.so.0 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要


yum install SDL

錯誤：can't create transaction lock on /var/lib/rpm/.rpm.lock (沒有此一檔案或目錄)
只要用最高權限安裝就不會出現了



DKMS packeage install:
http://linuxhub.net/2009/08/install-dkms-virtualbox-driver-not-installed-error-after-updating-to-new-linux-kernel/

>yum install dkms


error:
ref:http://webcache.googleusercontent.com/search?q=cache:79uWE8G1FjsJ:fedoraforum.org/forum/showthread.php%3Ft%3D255773+fedora+virtualbox+Error!+Your+kernel+source+for+kernel+2.6.35.6-45.fc14.i686+cannot+be+found+at+/lib/modules/2.6.35.6-45.fc14.i686/build+or+/lib/modules/2.6.35.6-45.fc14.i686/source.&cd=2&hl=zh-TW&ct=clnk&gl=tw&client=firefox-a&source=www.google.com.tw


fedora virtualbox Error! Your kernel source for kernel 2.6.35.6-45.fc14.i686 cannot be found at /lib/modules/2.6.35.6-45.fc14.i686/build or /lib/modules/2.6.35.6-45.fc14.i686/source.

>yum install kernel-devel kernel-headers gcc
>yum groupinstall 'Development Tools'
>/etc/init.d/vboxdrv setup

 fedora13成功範例
http://forums.fedoraforum.org/showthread.php?t=245638

Ferora安裝flash player

 參考資料

http://www.wretch.cc/blog/Likao/24774290

原本在 Linux 視窗介面下安裝插件是一件很容易的事~
只要雙擊 .rpm 檔就可以自動安裝了~
但是不知道為什麼，用這樣子的方式安裝插件包~
常常會莫名其妙的安裝失敗~
在上網搜尋過後~
發現還是以輸入指令的方式安裝比較"穩"~!!


安裝步驟如下：

1.去 Adobe 的官網下載 flash player 的 .rpm 檔。

2.打開終端機 cd 到該 .rpm 檔的路徑底下，輸入以下指令：

shell>> su -c "yum localinstall --nogpg *.rpm"

然後輸入 root 的密碼照著提示操作就安裝完成了。

[jim@jimfedora download]$ su -c "yum localinstall --nogpg *.rpm"

Loaded plugins: langpacks, presto, refresh-packagekit
Adding zh_TW to language list
Setting up Local Package Process
Examining flash-plugin-10.2.152.27-release.i386.rpm: flash-plugin-10.2.152.27-release.i386
Marking flash-plugin-10.2.152.27-release.i386.rpm to be installed
fedora/metalink                                          |  13 kB     00:00    
fedora                                                   | 4.3 kB     00:00    
fedora/primary_db                                        |  11 MB     00:02    
updates/metalink                                         | 4.1 kB     00:00    
updates                                                  | 4.7 kB     00:00    
updates/primary_db                                       | 3.5 MB     00:36    
Resolving Dependencies
--> Running transaction check
---> Package flash-plugin.i386 0:10.2.152.27-release set to be installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package  Arch Version             Repository                              Size
================================================================================
Installing:
 flash-plugin
          i386 10.2.152.27-release /flash-plugin-10.2.152.27-release.i386  12 M

Transaction Summary
================================================================================
Install       1 Package(s)

Total size: 12 M
Installed size: 12 M
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : flash-plugin-10.2.152.27-release.i386                    1/1

Installed:
  flash-plugin.i386 0:10.2.152.27-release                                      

Complete!
[jim@jimfedora download]$

RTF(Rich Text Format)PPT大綱轉成WORD好用格式

富文字格式（Rich Text Format）即RTF格式，又稱多文本格式，是由微軟公司開發的跨平台文檔格式。大多數的文字處理軟體都能讀取和保存RTF文檔。

作為微軟公司的標準文件，早期外間需要數十美元向微軟付款，才能購買一本薄薄的RTF標準文件。不過隨著採用RTF格式標準的軟體愈來愈多，RTF格式也愈來愈普遍，微軟公司就把標準文件公開，放在網上供開發者下載。現時可供下載的各個RTF版本標準文件如下：

RTF 1.9.1 specification (March 2008)
RTF 1.8 specification (April 2004)
RTF 1.6 specification (May 1999)
RTF 1.5 specification (April 1997)
RTF 1.3 and 1.5 specifications
RTF 1.0 specification (June 1992)


支持RTF的軟體

WordPad（Microsoft Windows）/ TextEdit（Mac OS）
Microsoft Word
OpenOffice Writer
WPS
EIOffice

RTF研究

網路太慢，要記得更新

opencv初步，順利啟航

opencv 中文化教學手冊
http://www.opencv.org.cn/index.php/Cv%E5%9B%BE%E5%83%8F%E5%A4%84%E7%90%86#Resize


resize的抉擇?
http://checko.blogspot.com/2005/04/resize-bicubic-bilinear.html

opencv 2.0 + cmake-2.8.2-win32-x86.exe + Microsoft studio 2008安裝簡介

http://www.wretch.cc/blog/okokok126/6863504

http://blog.yam.com/dainn/article/25692284

參考以上兩網友步驟實作，

lib和include確定都有引入後，

x:\OpenCV2.0\vs2008\bin\Debug

每次建立專案後要加入的三個lib名稱是

cv200d.lib cxcore200d.lib highgui200d.lib



中間也有發生記憶體錯誤的情形，但是把圖檔改成絕對路徑

x:\\openvc_code\\test3\\Debug\\lena.bmp

就解決了。