Re: [beagleboard] Re: color ball tracking with opencv on BBB
Seems like a lot of work! Use an indirect internet connection to your beaglebone using the USB to your computer, then set up a bridge between your internet and the USB connection. On Wed, Oct 29, 2014 at 11:47 PM, Lingesh Waran radhaling...@gmail.com wrote: Hi all...I want to perform Image processing tasks in BBB which runs Debian Linux... so I need to install *OpenCV* on BBB.. It seems i should install *cmake * in prior... I dont have direct internet connection to my BBB.. I tried to download OpenCV from github.com http://www.google.com/url?q=http%3A%2F%2Fgithub.comsa=Dsntz=1usg=AFQjCNFCNLSjW9vNIlZmNtEh3Pi8fjEOSw as a ZIP file and i copied it to BBB using pendriveCan anyone please guide me how to install cmake on BBB?? i tried to download cmake and ended up in incomplete build please help me your ideas will be really appreciated Thanks in advance :) -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/fTan4VKv1no/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: color ball tracking with opencv on BBB
On Fri, Sep 12, 2014 at 12:23 AM, janszymanski12...@gmail.com wrote: That works. Another question is how to clone or replicate BBBs eMMC? How to move it into microSD card and vice versa? If I need to have exactly the same image on another BBB as the one I am currently working on (when it's finished) what is the procedure then? Can you start a new thread when you ask a new (not really related) question? I see some places this wasn't answered, but here's where I tried to address the issue: http://beagleboard.org/Community/Forums?place=msg%2Fbeagleboard%2F5Xk212VcTJM%2FN7vwvZcSbWMJ http://elinux.org/BeagleBone_Black_Extracting_eMMC_contents More recently, http://elinux.org/BeagleBone_Community#Board_recovery_and_Flashing_Images_on_BeagleBone was updated with: http://www.dc-computing.com/CloningCustomizedBeagles.html On Friday, 12 September 2014 12:45:15 UTC+10, Brandon I wrote: Or, cpufreq-set -f 1GHz On Thu, Sep 11, 2014 at 4:39 PM, William Hermans yyr...@gmail.com wrote: Oh, and for the uninitiated . . . setting your governor to performance / 1Ghz _all_the_time_ may not be a very good idea. For instance it has been in the mid to upper 80's F outdoor ambient here, and I've noticed my BBB getting pretty warm. On Thu, Sep 11, 2014 at 4:34 PM, William Hermans yyr...@gmail.com wrote: From memory setting profile limits would be like this You change to a profile via $ sudo cpufreq-set -g govenor_name Check profile limits $ sudo cpufreq-info -p Change minimum profile range $ cpufreq-set -d 100 /*set minimum processor freq for active profile to 1 GHz */ I do not know if these setting persist across reboots, but I think not. At least it did not see that was for me. Also settings seem to be a bit quirky. On one of my Linux support system for instance, manually changing anything did not work as expected. I could change profiles, governors etc, but actual frequency always stayed the same. Then with BBB when you set minimum ondemand profile to 1Ghz, it does not take. But when changing to performance profile, minimum freq is 300Mhz, but when you check actual processor freq it is 1Ghz . . . So yeah, anyhow the program is quirky. On Thu, Sep 11, 2014 at 4:26 PM, William Hermans yyr...@gmail.com wrote: $ cpufreq-set --help. You may need to set you profile limits/ performance is default 300MHz to 1Ghz just like ondemand, but for some reason it is always 1GHz whenever I look. On Thu, Sep 11, 2014 at 3:47 PM, John Syn john...@gmail.com wrote: From: janszyma...@gmail.com Reply-To: beagl...@googlegroups.com beagl...@googlegroups.com Date: Thursday, September 11, 2014 at 3:35 PM To: beagl...@googlegroups.com beagl...@googlegroups.com Subject: Re: [beagleboard] Re: color ball tracking with opencv on BBB I was able to build and install the same version of openCV (2.4.9) on BBB debian as on my desktop Ubuntu by using an external USB memory stick. Now I have a problem with changing CPU frequency (as I would like to increase it from 300MHz to 1GHz) debian@beaglebone:~$ cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpu...@vger.kernel.org, please. analyzing CPU 0: driver: generic_cpu0 CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 300 us. hardware limits: 300 MHz - 1000 MHz available frequency steps: 300 MHz, 600 MHz, 800 MHz, 1000 MHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 300 MHz and 1000 MHz. The governor ondemand may decide which speed to use within this range. * current CPU frequency is 300 MHz.* cpufreq stats: 300 MHz:97.20%, 600 MHz:0.20%, 800 MHz:0.06%, 1000 MHz:2.55% (35) debian@beaglebone:~$ sudo cpufreq-set -g GOV *Error setting new values*. Common errors: - Do you have proper administration rights? (super-user?) - Is the governor you requested available and modprobed? - Trying to set an invalid policy? - Trying to set a specific frequency, but userspace governor is not available, for example because of hardware which cannot be set to a specific frequency or because the userspace governor isn't loaded? debian@beaglebone:~$ William just explained how to do this earlier today: *sudo cpufreq-set -g performance* Regards, John What am I doing wrong? Jan On Wednesday, 10 September 2014 12:52:11 UTC+10, Brandon I wrote: And, here are some compile flags you'll want to include/force: http://www.eliteraspberries.com/blog/2013/09/cflags-for-numerical- computing-on-the-beaglebone-black.html On Tue, Sep 9, 2014 at 7:16 PM, Brandon I brando...@gmail.com wrote: I'm not sure that newer open cv can be compiled on the raspberry or beaglebone due to the limited ram. You'll probably have to cross compile
Re: [beagleboard] Re: color ball tracking with opencv on BBB
I was able to build and install the same version of openCV (2.4.9) on BBB debian as on my desktop Ubuntu by using an external USB memory stick. Now I have a problem with changing CPU frequency (as I would like to increase it from 300MHz to 1GHz) debian@beaglebone:~$ cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpuf...@vger.kernel.org, please. analyzing CPU 0: driver: generic_cpu0 CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 300 us. hardware limits: 300 MHz - 1000 MHz available frequency steps: 300 MHz, 600 MHz, 800 MHz, 1000 MHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 300 MHz and 1000 MHz. The governor ondemand may decide which speed to use within this range. * current CPU frequency is 300 MHz.* cpufreq stats: 300 MHz:97.20%, 600 MHz:0.20%, 800 MHz:0.06%, 1000 MHz:2.55% (35) debian@beaglebone:~$ sudo cpufreq-set -g GOV *Error setting new values*. Common errors: - Do you have proper administration rights? (super-user?) - Is the governor you requested available and modprobed? - Trying to set an invalid policy? - Trying to set a specific frequency, but userspace governor is not available, for example because of hardware which cannot be set to a specific frequency or because the userspace governor isn't loaded? debian@beaglebone:~$ What am I doing wrong? Jan On Wednesday, 10 September 2014 12:52:11 UTC+10, Brandon I wrote: And, here are some compile flags you'll want to include/force: http://www.eliteraspberries.com/blog/2013/09/cflags-for-numerical-computing-on-the-beaglebone-black.html On Tue, Sep 9, 2014 at 7:16 PM, Brandon I brando...@gmail.com javascript: wrote: I'm not sure that newer open cv can be compiled on the raspberry or beaglebone due to the limited ram. You'll probably have to cross compile. On Tue, Sep 9, 2014 at 5:56 PM, janszyma...@gmail.com javascript: wrote: Thanks for that link, it is very usefull. In a meantime my attempt to install a newer version of opencv (following the instructions from here http://robertcastle.com/2014/02/installing-opencv-on-a-raspberry-pi/0) has failed firstly with cmake-curses-gui not working (empty database?) and after that (using command line cmake) the building stopped with a error message of not enough memory. Jan On Tuesday, September 9, 2014 11:03:58 AM UTC+10, janszyma...@gmail.com wrote: Hi, I need to implement tracking of color ball with opencv on BBB. I have a rev.C BBB with latest (default Debian) including opencv 2.3.1 On my desktop Ubuntu I have installed opencv 2.4.9 To check the initial performance I used the example webcam program from the book Practical OpenCV listing 4-4 p.34 playing the video from USB camera (Logitech C920) I need a resolution of 640x480. The problem is with a speed on BBB, having a significant delay. It's good on a desktop PC. I would like to ask for advice how to improve the performance on BBB if possible. Jan -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/fTan4VKv1no/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard...@googlegroups.com javascript:. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: color ball tracking with opencv on BBB
From: janszymanski12...@gmail.com Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com Date: Thursday, September 11, 2014 at 3:35 PM To: beagleboard@googlegroups.com beagleboard@googlegroups.com Subject: Re: [beagleboard] Re: color ball tracking with opencv on BBB I was able to build and install the same version of openCV (2.4.9) on BBB debian as on my desktop Ubuntu by using an external USB memory stick. Now I have a problem with changing CPU frequency (as I would like to increase it from 300MHz to 1GHz) debian@beaglebone:~$ cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpuf...@vger.kernel.org, please. analyzing CPU 0: driver: generic_cpu0 CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 300 us. hardware limits: 300 MHz - 1000 MHz available frequency steps: 300 MHz, 600 MHz, 800 MHz, 1000 MHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 300 MHz and 1000 MHz. The governor ondemand may decide which speed to use within this range. current CPU frequency is 300 MHz. cpufreq stats: 300 MHz:97.20%, 600 MHz:0.20%, 800 MHz:0.06%, 1000 MHz:2.55% (35) debian@beaglebone:~$ sudo cpufreq-set -g GOV Error setting new values. Common errors: - Do you have proper administration rights? (super-user?) - Is the governor you requested available and modprobed? - Trying to set an invalid policy? - Trying to set a specific frequency, but userspace governor is not available, for example because of hardware which cannot be set to a specific frequency or because the userspace governor isn't loaded? debian@beaglebone:~$ William just explained how to do this earlier today: sudo cpufreq-set -g performance Regards, John What am I doing wrong? Jan On Wednesday, 10 September 2014 12:52:11 UTC+10, Brandon I wrote: And, here are some compile flags you'll want to include/force: http://www.eliteraspberries.com/blog/2013/09/cflags-for-numerical-computing-o n-the-beaglebone-black.html On Tue, Sep 9, 2014 at 7:16 PM, Brandon I brando...@gmail.com javascript: wrote: I'm not sure that newer open cv can be compiled on the raspberry or beaglebone due to the limited ram. You'll probably have to cross compile. On Tue, Sep 9, 2014 at 5:56 PM, janszyma...@gmail.com javascript: wrote: Thanks for that link, it is very usefull. In a meantime my attempt to install a newer version of opencv (following the instructions from here http://robertcastle.com/2014/02/installing-opencv-on-a-raspberry-pi/0) has failed firstly with cmake-curses-gui not working (empty database?) and after that (using command line cmake) the building stopped with a error message of not enough memory. Jan On Tuesday, September 9, 2014 11:03:58 AM UTC+10, janszyma...@gmail.com wrote: Hi, I need to implement tracking of color ball with opencv on BBB. I have a rev.C BBB with latest (default Debian) including opencv 2.3.1 On my desktop Ubuntu I have installed opencv 2.4.9 To check the initial performance I used the example webcam program from the book Practical OpenCV listing 4-4 p.34 playing the video from USB camera (Logitech C920) I need a resolution of 640x480. The problem is with a speed on BBB, having a significant delay. It's good on a desktop PC. I would like to ask for advice how to improve the performance on BBB if possible. Jan -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/fTan4VKv1no/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard...@googlegroups.com javascript: . For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: color ball tracking with opencv on BBB
$ cpufreq-set --help. You may need to set you profile limits/ performance is default 300MHz to 1Ghz just like ondemand, but for some reason it is always 1GHz whenever I look. On Thu, Sep 11, 2014 at 3:47 PM, John Syn john3...@gmail.com wrote: From: janszymanski12...@gmail.com Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com Date: Thursday, September 11, 2014 at 3:35 PM To: beagleboard@googlegroups.com beagleboard@googlegroups.com Subject: Re: [beagleboard] Re: color ball tracking with opencv on BBB I was able to build and install the same version of openCV (2.4.9) on BBB debian as on my desktop Ubuntu by using an external USB memory stick. Now I have a problem with changing CPU frequency (as I would like to increase it from 300MHz to 1GHz) debian@beaglebone:~$ cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpuf...@vger.kernel.org, please. analyzing CPU 0: driver: generic_cpu0 CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 300 us. hardware limits: 300 MHz - 1000 MHz available frequency steps: 300 MHz, 600 MHz, 800 MHz, 1000 MHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 300 MHz and 1000 MHz. The governor ondemand may decide which speed to use within this range. * current CPU frequency is 300 MHz.* cpufreq stats: 300 MHz:97.20%, 600 MHz:0.20%, 800 MHz:0.06%, 1000 MHz:2.55% (35) debian@beaglebone:~$ sudo cpufreq-set -g GOV *Error setting new values*. Common errors: - Do you have proper administration rights? (super-user?) - Is the governor you requested available and modprobed? - Trying to set an invalid policy? - Trying to set a specific frequency, but userspace governor is not available, for example because of hardware which cannot be set to a specific frequency or because the userspace governor isn't loaded? debian@beaglebone:~$ William just explained how to do this earlier today: *sudo cpufreq-set -g performance* Regards, John What am I doing wrong? Jan On Wednesday, 10 September 2014 12:52:11 UTC+10, Brandon I wrote: And, here are some compile flags you'll want to include/force: http://www.eliteraspberries.com/blog/2013/09/cflags-for-numerical- computing-on-the-beaglebone-black.html On Tue, Sep 9, 2014 at 7:16 PM, Brandon I brando...@gmail.com wrote: I'm not sure that newer open cv can be compiled on the raspberry or beaglebone due to the limited ram. You'll probably have to cross compile. On Tue, Sep 9, 2014 at 5:56 PM, janszyma...@gmail.com wrote: Thanks for that link, it is very usefull. In a meantime my attempt to install a newer version of opencv (following the instructions from here http://robertcastle.com/2014/ 02/installing-opencv-on-a-raspberry-pi/0) has failed firstly with cmake-curses-gui not working (empty database?) and after that (using command line cmake) the building stopped with a error message of not enough memory. Jan On Tuesday, September 9, 2014 11:03:58 AM UTC+10, janszyma...@gmail.com wrote: Hi, I need to implement tracking of color ball with opencv on BBB. I have a rev.C BBB with latest (default Debian) including opencv 2.3.1 On my desktop Ubuntu I have installed opencv 2.4.9 To check the initial performance I used the example webcam program from the book Practical OpenCV listing 4-4 p.34 playing the video from USB camera (Logitech C920) I need a resolution of 640x480. The problem is with a speed on BBB, having a significant delay. It's good on a desktop PC. I would like to ask for advice how to improve the performance on BBB if possible. Jan -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/ topic/beagleboard/fTan4VKv1no/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d
Re: [beagleboard] Re: color ball tracking with opencv on BBB
From memory setting profile limits would be like this You change to a profile via $ sudo cpufreq-set -g govenor_name Check profile limits $ sudo cpufreq-info -p Change minimum profile range $ cpufreq-set -d 100 /*set minimum processor freq for active profile to 1 GHz */ I do not know if these setting persist across reboots, but I think not. At least it did not see that was for me. Also settings seem to be a bit quirky. On one of my Linux support system for instance, manually changing anything did not work as expected. I could change profiles, governors etc, but actual frequency always stayed the same. Then with BBB when you set minimum ondemand profile to 1Ghz, it does not take. But when changing to performance profile, minimum freq is 300Mhz, but when you check actual processor freq it is 1Ghz . . . So yeah, anyhow the program is quirky. On Thu, Sep 11, 2014 at 4:26 PM, William Hermans yyrk...@gmail.com wrote: $ cpufreq-set --help. You may need to set you profile limits/ performance is default 300MHz to 1Ghz just like ondemand, but for some reason it is always 1GHz whenever I look. On Thu, Sep 11, 2014 at 3:47 PM, John Syn john3...@gmail.com wrote: From: janszymanski12...@gmail.com Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com Date: Thursday, September 11, 2014 at 3:35 PM To: beagleboard@googlegroups.com beagleboard@googlegroups.com Subject: Re: [beagleboard] Re: color ball tracking with opencv on BBB I was able to build and install the same version of openCV (2.4.9) on BBB debian as on my desktop Ubuntu by using an external USB memory stick. Now I have a problem with changing CPU frequency (as I would like to increase it from 300MHz to 1GHz) debian@beaglebone:~$ cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpuf...@vger.kernel.org, please. analyzing CPU 0: driver: generic_cpu0 CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 300 us. hardware limits: 300 MHz - 1000 MHz available frequency steps: 300 MHz, 600 MHz, 800 MHz, 1000 MHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 300 MHz and 1000 MHz. The governor ondemand may decide which speed to use within this range. * current CPU frequency is 300 MHz.* cpufreq stats: 300 MHz:97.20%, 600 MHz:0.20%, 800 MHz:0.06%, 1000 MHz:2.55% (35) debian@beaglebone:~$ sudo cpufreq-set -g GOV *Error setting new values*. Common errors: - Do you have proper administration rights? (super-user?) - Is the governor you requested available and modprobed? - Trying to set an invalid policy? - Trying to set a specific frequency, but userspace governor is not available, for example because of hardware which cannot be set to a specific frequency or because the userspace governor isn't loaded? debian@beaglebone:~$ William just explained how to do this earlier today: *sudo cpufreq-set -g performance* Regards, John What am I doing wrong? Jan On Wednesday, 10 September 2014 12:52:11 UTC+10, Brandon I wrote: And, here are some compile flags you'll want to include/force: http://www.eliteraspberries.com/blog/2013/09/cflags-for-numerical- computing-on-the-beaglebone-black.html On Tue, Sep 9, 2014 at 7:16 PM, Brandon I brando...@gmail.com wrote: I'm not sure that newer open cv can be compiled on the raspberry or beaglebone due to the limited ram. You'll probably have to cross compile. On Tue, Sep 9, 2014 at 5:56 PM, janszyma...@gmail.com wrote: Thanks for that link, it is very usefull. In a meantime my attempt to install a newer version of opencv (following the instructions from here http://robertcastle.com/2014/ 02/installing-opencv-on-a-raspberry-pi/0) has failed firstly with cmake-curses-gui not working (empty database?) and after that (using command line cmake) the building stopped with a error message of not enough memory. Jan On Tuesday, September 9, 2014 11:03:58 AM UTC+10, janszyma...@gmail.com wrote: Hi, I need to implement tracking of color ball with opencv on BBB. I have a rev.C BBB with latest (default Debian) including opencv 2.3.1 On my desktop Ubuntu I have installed opencv 2.4.9 To check the initial performance I used the example webcam program from the book Practical OpenCV listing 4-4 p.34 playing the video from USB camera (Logitech C920) I need a resolution of 640x480. The problem is with a speed on BBB, having a significant delay. It's good on a desktop PC. I would like to ask for advice how to improve the performance on BBB if possible. Jan -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic
Re: [beagleboard] Re: color ball tracking with opencv on BBB
Oh, and for the uninitiated . . . setting your governor to performance / 1Ghz _all_the_time_ may not be a very good idea. For instance it has been in the mid to upper 80's F outdoor ambient here, and I've noticed my BBB getting pretty warm. On Thu, Sep 11, 2014 at 4:34 PM, William Hermans yyrk...@gmail.com wrote: From memory setting profile limits would be like this You change to a profile via $ sudo cpufreq-set -g govenor_name Check profile limits $ sudo cpufreq-info -p Change minimum profile range $ cpufreq-set -d 100 /*set minimum processor freq for active profile to 1 GHz */ I do not know if these setting persist across reboots, but I think not. At least it did not see that was for me. Also settings seem to be a bit quirky. On one of my Linux support system for instance, manually changing anything did not work as expected. I could change profiles, governors etc, but actual frequency always stayed the same. Then with BBB when you set minimum ondemand profile to 1Ghz, it does not take. But when changing to performance profile, minimum freq is 300Mhz, but when you check actual processor freq it is 1Ghz . . . So yeah, anyhow the program is quirky. On Thu, Sep 11, 2014 at 4:26 PM, William Hermans yyrk...@gmail.com wrote: $ cpufreq-set --help. You may need to set you profile limits/ performance is default 300MHz to 1Ghz just like ondemand, but for some reason it is always 1GHz whenever I look. On Thu, Sep 11, 2014 at 3:47 PM, John Syn john3...@gmail.com wrote: From: janszymanski12...@gmail.com Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com Date: Thursday, September 11, 2014 at 3:35 PM To: beagleboard@googlegroups.com beagleboard@googlegroups.com Subject: Re: [beagleboard] Re: color ball tracking with opencv on BBB I was able to build and install the same version of openCV (2.4.9) on BBB debian as on my desktop Ubuntu by using an external USB memory stick. Now I have a problem with changing CPU frequency (as I would like to increase it from 300MHz to 1GHz) debian@beaglebone:~$ cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpuf...@vger.kernel.org, please. analyzing CPU 0: driver: generic_cpu0 CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 300 us. hardware limits: 300 MHz - 1000 MHz available frequency steps: 300 MHz, 600 MHz, 800 MHz, 1000 MHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 300 MHz and 1000 MHz. The governor ondemand may decide which speed to use within this range. * current CPU frequency is 300 MHz.* cpufreq stats: 300 MHz:97.20%, 600 MHz:0.20%, 800 MHz:0.06%, 1000 MHz:2.55% (35) debian@beaglebone:~$ sudo cpufreq-set -g GOV *Error setting new values*. Common errors: - Do you have proper administration rights? (super-user?) - Is the governor you requested available and modprobed? - Trying to set an invalid policy? - Trying to set a specific frequency, but userspace governor is not available, for example because of hardware which cannot be set to a specific frequency or because the userspace governor isn't loaded? debian@beaglebone:~$ William just explained how to do this earlier today: *sudo cpufreq-set -g performance* Regards, John What am I doing wrong? Jan On Wednesday, 10 September 2014 12:52:11 UTC+10, Brandon I wrote: And, here are some compile flags you'll want to include/force: http://www.eliteraspberries.com/blog/2013/09/cflags-for-numerical- computing-on-the-beaglebone-black.html On Tue, Sep 9, 2014 at 7:16 PM, Brandon I brando...@gmail.com wrote: I'm not sure that newer open cv can be compiled on the raspberry or beaglebone due to the limited ram. You'll probably have to cross compile. On Tue, Sep 9, 2014 at 5:56 PM, janszyma...@gmail.com wrote: Thanks for that link, it is very usefull. In a meantime my attempt to install a newer version of opencv (following the instructions from here http://robertcastle.com/2014/ 02/installing-opencv-on-a-raspberry-pi/0) has failed firstly with cmake-curses-gui not working (empty database?) and after that (using command line cmake) the building stopped with a error message of not enough memory. Jan On Tuesday, September 9, 2014 11:03:58 AM UTC+10, janszyma...@gmail.com wrote: Hi, I need to implement tracking of color ball with opencv on BBB. I have a rev.C BBB with latest (default Debian) including opencv 2.3.1 On my desktop Ubuntu I have installed opencv 2.4.9 To check the initial performance I used the example webcam program from the book Practical OpenCV listing 4-4 p.34 playing the video from USB camera (Logitech C920) I need a resolution of 640x480. The problem is with a speed on BBB, having
Re: [beagleboard] Re: color ball tracking with opencv on BBB
Or, cpufreq-set -f 1GHz On Thu, Sep 11, 2014 at 4:39 PM, William Hermans yyrk...@gmail.com wrote: Oh, and for the uninitiated . . . setting your governor to performance / 1Ghz _all_the_time_ may not be a very good idea. For instance it has been in the mid to upper 80's F outdoor ambient here, and I've noticed my BBB getting pretty warm. On Thu, Sep 11, 2014 at 4:34 PM, William Hermans yyrk...@gmail.com wrote: From memory setting profile limits would be like this You change to a profile via $ sudo cpufreq-set -g govenor_name Check profile limits $ sudo cpufreq-info -p Change minimum profile range $ cpufreq-set -d 100 /*set minimum processor freq for active profile to 1 GHz */ I do not know if these setting persist across reboots, but I think not. At least it did not see that was for me. Also settings seem to be a bit quirky. On one of my Linux support system for instance, manually changing anything did not work as expected. I could change profiles, governors etc, but actual frequency always stayed the same. Then with BBB when you set minimum ondemand profile to 1Ghz, it does not take. But when changing to performance profile, minimum freq is 300Mhz, but when you check actual processor freq it is 1Ghz . . . So yeah, anyhow the program is quirky. On Thu, Sep 11, 2014 at 4:26 PM, William Hermans yyrk...@gmail.com wrote: $ cpufreq-set --help. You may need to set you profile limits/ performance is default 300MHz to 1Ghz just like ondemand, but for some reason it is always 1GHz whenever I look. On Thu, Sep 11, 2014 at 3:47 PM, John Syn john3...@gmail.com wrote: From: janszymanski12...@gmail.com Reply-To: beagleboard@googlegroups.com beagleboard@googlegroups.com Date: Thursday, September 11, 2014 at 3:35 PM To: beagleboard@googlegroups.com beagleboard@googlegroups.com Subject: Re: [beagleboard] Re: color ball tracking with opencv on BBB I was able to build and install the same version of openCV (2.4.9) on BBB debian as on my desktop Ubuntu by using an external USB memory stick. Now I have a problem with changing CPU frequency (as I would like to increase it from 300MHz to 1GHz) debian@beaglebone:~$ cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpuf...@vger.kernel.org, please. analyzing CPU 0: driver: generic_cpu0 CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 300 us. hardware limits: 300 MHz - 1000 MHz available frequency steps: 300 MHz, 600 MHz, 800 MHz, 1000 MHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 300 MHz and 1000 MHz. The governor ondemand may decide which speed to use within this range. * current CPU frequency is 300 MHz.* cpufreq stats: 300 MHz:97.20%, 600 MHz:0.20%, 800 MHz:0.06%, 1000 MHz:2.55% (35) debian@beaglebone:~$ sudo cpufreq-set -g GOV *Error setting new values*. Common errors: - Do you have proper administration rights? (super-user?) - Is the governor you requested available and modprobed? - Trying to set an invalid policy? - Trying to set a specific frequency, but userspace governor is not available, for example because of hardware which cannot be set to a specific frequency or because the userspace governor isn't loaded? debian@beaglebone:~$ William just explained how to do this earlier today: *sudo cpufreq-set -g performance* Regards, John What am I doing wrong? Jan On Wednesday, 10 September 2014 12:52:11 UTC+10, Brandon I wrote: And, here are some compile flags you'll want to include/force: http://www.eliteraspberries.com/blog/2013/09/cflags-for-numerical- computing-on-the-beaglebone-black.html On Tue, Sep 9, 2014 at 7:16 PM, Brandon I brando...@gmail.com wrote: I'm not sure that newer open cv can be compiled on the raspberry or beaglebone due to the limited ram. You'll probably have to cross compile. On Tue, Sep 9, 2014 at 5:56 PM, janszyma...@gmail.com wrote: Thanks for that link, it is very usefull. In a meantime my attempt to install a newer version of opencv (following the instructions from here http://robertcastle.com/2014/ 02/installing-opencv-on-a-raspberry-pi/0) has failed firstly with cmake-curses-gui not working (empty database?) and after that (using command line cmake) the building stopped with a error message of not enough memory. Jan On Tuesday, September 9, 2014 11:03:58 AM UTC+10, janszyma...@gmail.com wrote: Hi, I need to implement tracking of color ball with opencv on BBB. I have a rev.C BBB with latest (default Debian) including opencv 2.3.1 On my desktop Ubuntu I have installed opencv 2.4.9 To check the initial performance I used the example webcam program from the book Practical OpenCV listing 4-4 p.34 playing the video from USB
Re: [beagleboard] Re: color ball tracking with opencv on BBB
That works. Another question is how to clone or replicate BBBs eMMC? How to move it into microSD card and vice versa? If I need to have exactly the same image on another BBB as the one I am currently working on (when it's finished) what is the procedure then? On Friday, 12 September 2014 12:45:15 UTC+10, Brandon I wrote: Or, cpufreq-set -f 1GHz On Thu, Sep 11, 2014 at 4:39 PM, William Hermans yyr...@gmail.com javascript: wrote: Oh, and for the uninitiated . . . setting your governor to performance / 1Ghz _all_the_time_ may not be a very good idea. For instance it has been in the mid to upper 80's F outdoor ambient here, and I've noticed my BBB getting pretty warm. On Thu, Sep 11, 2014 at 4:34 PM, William Hermans yyr...@gmail.com javascript: wrote: From memory setting profile limits would be like this You change to a profile via $ sudo cpufreq-set -g govenor_name Check profile limits $ sudo cpufreq-info -p Change minimum profile range $ cpufreq-set -d 100 /*set minimum processor freq for active profile to 1 GHz */ I do not know if these setting persist across reboots, but I think not. At least it did not see that was for me. Also settings seem to be a bit quirky. On one of my Linux support system for instance, manually changing anything did not work as expected. I could change profiles, governors etc, but actual frequency always stayed the same. Then with BBB when you set minimum ondemand profile to 1Ghz, it does not take. But when changing to performance profile, minimum freq is 300Mhz, but when you check actual processor freq it is 1Ghz . . . So yeah, anyhow the program is quirky. On Thu, Sep 11, 2014 at 4:26 PM, William Hermans yyr...@gmail.com javascript: wrote: $ cpufreq-set --help. You may need to set you profile limits/ performance is default 300MHz to 1Ghz just like ondemand, but for some reason it is always 1GHz whenever I look. On Thu, Sep 11, 2014 at 3:47 PM, John Syn john...@gmail.com javascript: wrote: From: janszyma...@gmail.com javascript: Reply-To: beagl...@googlegroups.com javascript: beagl...@googlegroups.com javascript: Date: Thursday, September 11, 2014 at 3:35 PM To: beagl...@googlegroups.com javascript: beagl...@googlegroups.com javascript: Subject: Re: [beagleboard] Re: color ball tracking with opencv on BBB I was able to build and install the same version of openCV (2.4.9) on BBB debian as on my desktop Ubuntu by using an external USB memory stick. Now I have a problem with changing CPU frequency (as I would like to increase it from 300MHz to 1GHz) debian@beaglebone:~$ cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpu...@vger.kernel.org javascript:, please. analyzing CPU 0: driver: generic_cpu0 CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 300 us. hardware limits: 300 MHz - 1000 MHz available frequency steps: 300 MHz, 600 MHz, 800 MHz, 1000 MHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 300 MHz and 1000 MHz. The governor ondemand may decide which speed to use within this range. * current CPU frequency is 300 MHz.* cpufreq stats: 300 MHz:97.20%, 600 MHz:0.20%, 800 MHz:0.06%, 1000 MHz:2.55% (35) debian@beaglebone:~$ sudo cpufreq-set -g GOV *Error setting new values*. Common errors: - Do you have proper administration rights? (super-user?) - Is the governor you requested available and modprobed? - Trying to set an invalid policy? - Trying to set a specific frequency, but userspace governor is not available, for example because of hardware which cannot be set to a specific frequency or because the userspace governor isn't loaded? debian@beaglebone:~$ William just explained how to do this earlier today: *sudo cpufreq-set -g performance* Regards, John What am I doing wrong? Jan On Wednesday, 10 September 2014 12:52:11 UTC+10, Brandon I wrote: And, here are some compile flags you'll want to include/force: http://www.eliteraspberries.com/blog/2013/09/cflags-for-numerical- computing-on-the-beaglebone-black.html On Tue, Sep 9, 2014 at 7:16 PM, Brandon I brando...@gmail.com wrote: I'm not sure that newer open cv can be compiled on the raspberry or beaglebone due to the limited ram. You'll probably have to cross compile. On Tue, Sep 9, 2014 at 5:56 PM, janszyma...@gmail.com wrote: Thanks for that link, it is very usefull. In a meantime my attempt to install a newer version of opencv (following the instructions from here http://robertcastle.com/2014/ 02/installing-opencv-on-a-raspberry-pi/0) has failed firstly with cmake-curses-gui not working (empty database?) and after that (using command line cmake) the building stopped
Re: [beagleboard] Re: color ball tracking with opencv on BBB
I'm not sure that newer open cv can be compiled on the raspberry or beaglebone due to the limited ram. You'll probably have to cross compile. On Tue, Sep 9, 2014 at 5:56 PM, janszymanski12...@gmail.com wrote: Thanks for that link, it is very usefull. In a meantime my attempt to install a newer version of opencv (following the instructions from here http://robertcastle.com/2014/02/installing-opencv-on-a-raspberry-pi/0) has failed firstly with cmake-curses-gui not working (empty database?) and after that (using command line cmake) the building stopped with a error message of not enough memory. Jan On Tuesday, September 9, 2014 11:03:58 AM UTC+10, janszyma...@gmail.com wrote: Hi, I need to implement tracking of color ball with opencv on BBB. I have a rev.C BBB with latest (default Debian) including opencv 2.3.1 On my desktop Ubuntu I have installed opencv 2.4.9 To check the initial performance I used the example webcam program from the book Practical OpenCV listing 4-4 p.34 playing the video from USB camera (Logitech C920) I need a resolution of 640x480. The problem is with a speed on BBB, having a significant delay. It's good on a desktop PC. I would like to ask for advice how to improve the performance on BBB if possible. Jan -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/fTan4VKv1no/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: color ball tracking with opencv on BBB
IN case this information is useful. Derek Molloy on youtube did a video on this several months ago. He used the Logitec C920 i think it was. On Tue, Sep 9, 2014 at 7:16 PM, Brandon I brandon.ir...@gmail.com wrote: I'm not sure that newer open cv can be compiled on the raspberry or beaglebone due to the limited ram. You'll probably have to cross compile. On Tue, Sep 9, 2014 at 5:56 PM, janszymanski12...@gmail.com wrote: Thanks for that link, it is very usefull. In a meantime my attempt to install a newer version of opencv (following the instructions from here http://robertcastle.com/2014/02/installing-opencv-on-a-raspberry-pi/0) has failed firstly with cmake-curses-gui not working (empty database?) and after that (using command line cmake) the building stopped with a error message of not enough memory. Jan On Tuesday, September 9, 2014 11:03:58 AM UTC+10, janszyma...@gmail.com wrote: Hi, I need to implement tracking of color ball with opencv on BBB. I have a rev.C BBB with latest (default Debian) including opencv 2.3.1 On my desktop Ubuntu I have installed opencv 2.4.9 To check the initial performance I used the example webcam program from the book Practical OpenCV listing 4-4 p.34 playing the video from USB camera (Logitech C920) I need a resolution of 640x480. The problem is with a speed on BBB, having a significant delay. It's good on a desktop PC. I would like to ask for advice how to improve the performance on BBB if possible. Jan -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/fTan4VKv1no/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: color ball tracking with opencv on BBB
And, here are some compile flags you'll want to include/force: http://www.eliteraspberries.com/blog/2013/09/cflags-for-numerical-computing-on-the-beaglebone-black.html On Tue, Sep 9, 2014 at 7:16 PM, Brandon I brandon.ir...@gmail.com wrote: I'm not sure that newer open cv can be compiled on the raspberry or beaglebone due to the limited ram. You'll probably have to cross compile. On Tue, Sep 9, 2014 at 5:56 PM, janszymanski12...@gmail.com wrote: Thanks for that link, it is very usefull. In a meantime my attempt to install a newer version of opencv (following the instructions from here http://robertcastle.com/2014/02/installing-opencv-on-a-raspberry-pi/0) has failed firstly with cmake-curses-gui not working (empty database?) and after that (using command line cmake) the building stopped with a error message of not enough memory. Jan On Tuesday, September 9, 2014 11:03:58 AM UTC+10, janszyma...@gmail.com wrote: Hi, I need to implement tracking of color ball with opencv on BBB. I have a rev.C BBB with latest (default Debian) including opencv 2.3.1 On my desktop Ubuntu I have installed opencv 2.4.9 To check the initial performance I used the example webcam program from the book Practical OpenCV listing 4-4 p.34 playing the video from USB camera (Logitech C920) I need a resolution of 640x480. The problem is with a speed on BBB, having a significant delay. It's good on a desktop PC. I would like to ask for advice how to improve the performance on BBB if possible. Jan -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups BeagleBoard group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/fTan4VKv1no/unsubscribe. To unsubscribe from this group and all its topics, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
