機器視覺雜話(ZA WARUDO)

開啟 Windows 10 中的相機 若要開啟網路攝影機或相機，請選取  [開始]    按鈕，然後選取 App 清單中的  [相機] 。 如果您想在其他 App 內使用相機，請選取  [開始]    按鈕，選取  [設定]    >  [隱私權]  >  [相機] ，然後開啟 [允許應用程式存取您的相機] 。 接著，開啟清單中您想要使用相機的每個 App。 =========================================== 幾乎所有notebook都有配置webcam，但要如何設定應用程式是否可以存取相機，在windows 10中有權限設定，以下參考微軟windows支援網站： https://support.microsoft.com/zh-tw/help/4028647/windows-open-the-camera-in-windows-10

how-to-install-latest-gcc-on-ubuntu-lts.txt These commands are based on a askubuntu answer http://askubuntu.com/a/581497 To install gcc-6 (gcc-6.1.1), I had to do more stuff as shown below. USE THOSE COMMANDS AT YOUR OWN RISK. I SHALL NOT BE RESPONSIBLE FOR ANYTHING. ABSOLUTELY NO WARRANTY. If you are still reading let's carry on with the code. sudo apt-get update && \ sudo apt-get install build-essential software-properties-common -y && \ sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && \ sudo apt-get update && \ sudo apt-get install gcc-snapshot -y && \ sudo apt-get update && \ sudo apt-get install gcc-6 g++-6 -y && \ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-6 60 --slave /usr/bin/g++ g++ /usr/bin/g++-6 && \ sudo apt-get install gcc-4.8 g++-4.8 -y && \ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 60 --slave /usr/bin/g++ g++ /usr/bin/g...

Split text string at specific character Generic formula  = LEFT ( text , FIND ( character , text ) - 1 )

if you want to setting eth0 to dhcp client , you can use this command: sudo dhclient eth0 if you get the message: File exists, or something like that.. Basically what happens is that dhclient adds a route to the routing table. It tries this while the route is already in the table. Check ip route for a route which was added by the dhcp server. For having the lease renewed do sudo dhclient -r if thats not enough you can remove all leases by removing the file and getting a new lease sudo rm /var/lib/dhcp/dhclient.leases; sudo dhclient eth0 Depending on your exact setup this might be an issue with having to type your password twice, so watch out for that.

HOW to Install Tesseract 4.0 from source in Ubuntu 16.04 this is a tutorial : remove old version tesseract: 1. sudo apt-get remove tesseract-ocr* 2.  Configure compiling environment sudo apt-get install -y build-essential &&\ sudo apt-get install -y python-dev &&\ sudo apt-get install -y python &&\ sudo apt-get install -y python-pip &&\ sudo apt-get install -y python-setuptools &&\ sudo pip install -y cython you need to Upgrade g++5 sudo add-apt-repository ppa:ubuntu-toolchain-r/test &&\ sudo apt-get update &&\ sudo apt-get upgrade &&\ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-5 60 --slave /usr/bin/g++ g++ /usr/bin/g++-5 Install dependency package sudo apt-get install -y autoconf automake libtool &&\ sudo apt-get install -y autoconf-archive &&\ sudo apt-get install -y pkg-config &&\ sudo apt-get install -y libpng12-dev &&\ sudo apt-g...

How to install mysql in UBUNTU 16.04 LTS Try:  sudo service mysqld start To check that service is running use:  ps -ef | grep mysql | grep -v grep . Uninstalling: sudo apt-get purge mysql-server sudo apt-get autoremove sudo apt-get autoclean Re-Installing: sudo apt-get update sudo apt-get install mysql-server Backup entire folder before doing this: sudo rm / etc / apt / apt . conf . d / 50 unattended-upgrades * sudo apt-get update sudo apt-get upgrade if you want start or stop mysql server, you can use the command like : sudo /etc/init.d/mysql start sudo /etc/init.d/mysql stop that's it..

因為UBUNTU 16.04 LTS 約每個月都要重灌nvidia驅動程式，所以註記一下重灌driver步驟： 本例為nvidia-415，但我比較常用390.87的驅動。 The latest Nvidia drivers are available on graphics-drivers PPA. This repository provides the latest drivers for your Ubuntu Desktop systems. This tutorial will help you to  install the latest Nvidia drivers for your Ubuntu desktop using PPA . Remove Old Nvidia Driver The first step is to purge currently installed Nvidia drivers so that it does not conflict with the newer versions on your Ubuntu systems. sudo apt-get purge nvidia* Install Latest Nvidia Driver on Ubuntu Now enable the graphics-drivers PPA to your system. Currently, it supports Ubuntu 18.10, 18.04 LTS, 16.04 LTS, and 14.04 LTS operating systems. Keep in mind that its still under testing phase. sudo add-apt-repository ppa:graphics-drivers/ppa sudo apt update Next, identify the installed graphics card model and recommended driver for that by running the following command: ubuntu-drivers devices | gr...

ABSTRACT Recent studies towards dragline excavation efficiency have focused on incrementally achieving automation of the entire excavation cycle. Initial efforts resulted in the development of an automated dragline swing system, which optimizes the swing phase time. However, the system still requires human operation for collision avoidance. For full dragline autonomy, a machine vision system is needed for collision prevention and big rock handling during the ‘swinging’ and ‘digging’ phases of the excavation operation. Previous attempts in this area focused on collision avoidance vision models which estimated the location of the bucket in space in real-time. However, these previous models use image segmentation methods that are neither scalable nor multi-purpose. In this study, a scalable and multi-purpose vision model has been developed for draglines using Convolutional Neural Networks. This vision system averages 82.6% classification accuracy and 91% detection in collis...