Esoc488 fa18 tutorial - Revision history

David: /* Testing OpenCV */ added video for testing opencv once camera is working in the VM

2018-11-23T02:26:58Z

Testing OpenCV: added video for testing opencv once camera is working in the VM

← Older revision		Revision as of 02:26, 23 November 2018
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	=Testing OpenCV=		=Testing OpenCV=
	Again click the word 'Activities' in the upper-left of the Debian desktop, but now type in 'terminal' and press enter. Navigate to the OpenCV ~~directory~~, and ~~find~~ the ~~examples~~ python ~~files~~. ~~(TO BE CONTINUED)~~		Again click the word 'Activities' in the upper-left of the Debian desktop, but now type in 'terminal' and press enter. Navigate to the OpenCV subdirectory at /home/nemo/opencv-3.0.0/samples/python2/, and run the example python script for face detection, called 'facedetect.py,' as in this video:

			[[File:Esoc488 fa18 testing opencv.webm]]

David: fixed the video in the tutorial

2018-11-23T00:28:47Z

fixed the video in the tutorial

← Older revision		Revision as of 00:28, 23 November 2018
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	=Prerequisites=		=Prerequisites=
	You will need a computer with a camera attached (a laptop with a builtin camera is acceptable).		* You will need a computer with a camera attached (a laptop with a builtin camera is acceptable, or any computer with a USB camera).

	You will need the extension pack to use your camera. To get it, first find your version of virtualbox by going to "Help -> About Virtualbox." You should see this:		* You will need the extension pack to use your camera. To get it, first find your version of virtualbox by going to "Help -> About Virtualbox" (on the Mac, you need to go to the menu item called "VirtualBox" to see "About Virtualbox", if I recall correctly). You should see this:

	[File:Esoc488 fa18 get version.png\|1000px]]		[[File:Esoc488 fa18 get version.png\|1000px]]

	If you recently downloaded virtualbox, then you have 5.2.22; get the right extension pack from [https://download.virtualbox.org/virtualbox/5.2.22/Oracle_VM_VirtualBox_Extension_Pack-5.2.22.vbox-extpack here]. Otherwise You can find older extension packs [https://www.virtualbox.org/wiki/Download_Old_Builds_5_2 here].		Look in this box for your version number. If you recently downloaded virtualbox, then you have 5.2.22; get the right extension pack from [https://download.virtualbox.org/virtualbox/5.2.22/Oracle_VM_VirtualBox_Extension_Pack-5.2.22.vbox-extpack here]. Otherwise You can find older extension packs [https://www.virtualbox.org/wiki/Download_Old_Builds_5_2 here].

	You should be able to double-click the extension pack file to have Virtualbox open and install it (be sure that you don't have an VM's running when you do this)~~. Once the extension pack is installed, select the Info_Privacy_VM_OpenCV appliance, and click "settings." You should then select USB -> USB 2.0 (EHCI) Controller~~.		* You should be able to double-click the extension pack file to have Virtualbox open and install it (be sure that you don't have an VM's running when you do this).

	=Importing the appliance=		=Importing the appliance=
	Download the appliance file if you haven't already from [https://sidiprojects.us/Info_Privacy_VM_OpenCV.ova.tar.gz here].		* Download the appliance file if you haven't already from [https://sidiprojects.us/Info_Privacy_VM_OpenCV.ova.tar.gz here].

			* Once the extension pack is installed, try to run the Info_Privacy_VM_OpenCV appliance. Once the window opens and it starts to boot, click Devices -> Webcam and select your video camera (it should show a checkbox with a "tick" in it when you've selected the camera). If you don't see your camera there (and have one connected), close the appliance window (select "Power off the Machine" when prompted). In the Virtualbox Manager, click "Settings" and select USB -> USB 2.0 (EHCI) Controller.

	Inside the virtualbox program, select File -> Import appliance, then select the appliance file that you saved. (You don't need to decompress it, just select the .tar.gz file itself).		Inside the virtualbox program, select File -> Import appliance, then select the appliance file that you saved. (You don't need to decompress it, just select the .tar.gz file itself).
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	Select from the top menu Devices -> Webcams and select your camera (there should be a check mark inside the box next to your camera's name). Test it by clicking the word 'Activities' in the upper-left of the Debian desktop, typing in 'Cheese' and pressing enter. Your laptop camera should come on, like this:		Select from the top menu Devices -> Webcams and select your camera (there should be a check mark inside the box next to your camera's name). Test it by clicking the word 'Activities' in the upper-left of the Debian desktop, typing in 'Cheese' and pressing enter. Your laptop camera should come on, like this:

	[[File:~~Esoc488_fa18_testing_webcam_w_cheese~~.webm]]		[[File:Esoc488 fa18 testing webcam w cheese.webm\|File:Esoc488 fa18 testing webcam w cheese.webm]]

	~~(this video is coming~~

	=Testing OpenCV=		=Testing OpenCV=
	Again click the word 'Activities' in the upper-left of the Debian desktop, but now type in 'terminal' and press enter. Navigate to the OpenCV directory, and find the examples python files. (TO BE CONTINUED)		Again click the word 'Activities' in the upper-left of the Debian desktop, but now type in 'terminal' and press enter. Navigate to the OpenCV directory, and find the examples python files. (TO BE CONTINUED)

David: first part of tutorial for VM use with OpenCV

2018-11-21T19:27:11Z

first part of tutorial for VM use with OpenCV

New page

=Prerequisites=
You will need a computer with a camera attached (a laptop with a builtin camera is acceptable).

You will need the extension pack to use your camera. To get it, first find your version of virtualbox by going to "Help -> About Virtualbox." You should see this:

[File:Esoc488 fa18 get version.png|1000px]]

If you recently downloaded virtualbox, then you have 5.2.22; get the right extension pack from [https://download.virtualbox.org/virtualbox/5.2.22/Oracle_VM_VirtualBox_Extension_Pack-5.2.22.vbox-extpack here]. Otherwise You can find older extension packs [https://www.virtualbox.org/wiki/Download_Old_Builds_5_2 here].

You should be able to double-click the extension pack file to have Virtualbox open and install it (be sure that you don't have an VM's running when you do this). Once the extension pack is installed, select the Info_Privacy_VM_OpenCV appliance, and click "settings." You should then select USB -> USB 2.0 (EHCI) Controller.

=Importing the appliance=
Download the appliance file if you haven't already from [https://sidiprojects.us/Info_Privacy_VM_OpenCV.ova.tar.gz here].

Inside the virtualbox program, select File -> Import appliance, then select the appliance file that you saved. (You don't need to decompress it, just select the .tar.gz file itself).

=Booting into the VM=
Double click the VM that now appears in virtualbox to boot it. You will eventually reach this screen:

[[File:esoc488 fa18 first screen.png|1000px]]

Press the space bar once to show the screen that asks for a password, which looks like this

[[File:Login screen.png|1000px]]

The password for the user account 'nemo' is 'outis'. The password for 'root' is 'toor.' Type in 'outis' to authenticate.

Select from the top menu Devices -> Webcams and select your camera (there should be a check mark inside the box next to your camera's name). Test it by clicking the word 'Activities' in the upper-left of the Debian desktop, typing in 'Cheese' and pressing enter. Your laptop camera should come on, like this:

[[File:Esoc488_fa18_testing_webcam_w_cheese.webm]]

(this video is coming

=Testing OpenCV=
Again click the word 'Activities' in the upper-left of the Debian desktop, but now type in 'terminal' and press enter. Navigate to the OpenCV directory, and find the examples python files. (TO BE CONTINUED)