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Today's Topics:
1. Re: Using Motion to compare still images as they are captured
(Scott Barton)
2. Re: Using Motion to compare still images as they are captured
(Scott Barton)
----------------------------------------------------------------------
Message: 1
Date: Fri, 12 Jun 2020 13:59:33 +0000
From: Scott Barton <scott_bar...@hotmail.com>
To: "motion-user@lists.sourceforge.net"
<motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] Using Motion to compare still images as
they are captured
Message-ID:
<mn2pr11mb4552926a2b315f8643834f97eb...@mn2pr11mb4552.namprd11.prod.outlook.com>
Content-Type: text/plain; charset="iso-8859-1"
Correct. The Raspberry Pi will be running a program that will take a picture
every couple of seconds (the time between pictures taken will vary during the
print) and save it to the local file system. On that same Pi I would like to
run Motion detection program that when a new image file is saved to the
specified directory it would compare it to the previous file (or files if
needed) to detect if there was motion via a noticeable difference in the image.
If it detects 'motion' then trigger an alert like an email or text or
something.
Thanks!
________________________________
From: folkert <folk...@vanheusden.com>
Sent: Friday, June 12, 2020 2:43 AM
To: Scott Barton <scott_bar...@hotmail.com>
Cc: motion-user@lists.sourceforge.net <motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] Using Motion to compare still images as they are
captured
Scott,
Do you mean retrieving a jpeg from a filesystem and then compare that?
On Thu, Jun 11, 2020 at 06:48:45PM +0000, Scott Barton wrote:
> Is there a way to use the Motion detection software to detect major
> differences between still images? If not, can this feature be added? I
> believe there would be a significant demand for it.
>
> The use case for this is in 3D printing where when a print fails, it results
> in a major change in the image, but normal printing just does nominal updates
> that could easily be filtered out with the settings to the Motion software.
> 3D Printers can use software called OctoLapse running on a Raspberry Pi that
> takes pictures to make very smooth time lapse videos by positioning the bed
> and printer head in the same spot for each picture after each layer is
> printed. Because printed layer heights are very small the change from picture
> to picture would be minimal during normal printing. But when a print fails
> it results in huge immediate changes in pictures. Because 3D prints can take
> several hours (even days) and are often done not under constant supervision,
> when a print fails you can waste several hours and a lot of filament as the
> 3D printer continues to print the failed print until noticed or finished.
> Being able to detect a failed print and getting notified early on would be a
> HUGE advantage for all 3D printers.
> https://plugins.octoprint.org/plugins/octolapse/
>
>
> Examples of timelapse 3D printing video fails. You could see how Motion
> detection software could fairly easily detect early on when the failure
> occurs. Just need a way for the software to compare images as the come in
> (saved to a specific directory on the Raspberry Pi) instead of analyzing a
> video stream.
> https://www.youtube.com/watch?v=ZGOq9X5J97k
> [https://i.ytimg.com/vi/ZGOq9X5J97k/maxresdefault.jpg]<https://www.youtube.com/watch?v=ZGOq9X5J97k>
> 3DBenchy Octolapse - Fail<https://www.youtube.com/watch?v=ZGOq9X5J97k>
> 3DBenchy Octolapse - Fail
> www.youtube.com<http://www.youtube.com>
>
>
> https://www.youtube.com/watch?v=_8YT0j8UAI0
> [https://i.ytimg.com/vi/_8YT0j8UAI0/maxresdefault.jpg]<https://www.youtube.com/watch?v=_8YT0j8UAI0>
> EPIC 3D PRINTER PETG FAIL! filmed with Octolapse |
> JanTec<https://www.youtube.com/watch?v=_8YT0j8UAI0>
> one of my first timelapses for YouTube videos - a fail! :( 3d printer -
> JanTec - Epic 3d printer fail
> www.youtube.com<http://www.youtube.com>
>
> -Scott
>
>
> [https://ipmcdn.avast.com/images/icons/icon-envelope-tick-green-avg-v1.png]<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
> Virus-free.
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> https://lists.sourceforge.net/lists/listinfo/motion-user
> https://motion-project.github.io/
>
> Unsubscribe: https://lists.sourceforge.net/lists/options/motion-user
Folkert van Heusden
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Message: 2
Date: Fri, 12 Jun 2020 17:23:21 +0000
From: Scott Barton <scott_bar...@hotmail.com>
To: Andrew/ <and...@azotus.co.uk>
Cc: "motion-user@lists.sourceforge.net"
<motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] Using Motion to compare still images as
they are captured
Message-ID:
<mn2pr11mb45529b5a01a1065333b6c6daeb...@mn2pr11mb4552.namprd11.prod.outlook.com>
Content-Type: text/plain; charset="us-ascii"
The main issue is that Motion is looking for live video (only accepts video
formats) and it's looking for a URL, not for new files written to a directory.
While built in notifications would be nice, if Motion could be set to look for
new images in a local directory (set in Motion's settings) and compare the last
2 images (primarily jpeg, but possibly png) when a new image file is saved
there, I think I could get everything else to work with current features.
Scott
________________________________
From: Andrew/ <and...@azotus.co.uk>
Sent: Friday, June 12, 2020, 12:02 PM
To: Scott Barton
Subject: Re: [Motion-user] Using Motion to compare still images as they are
captured
Not an expert by any means, I'm just a user; but Motion can generate a still
image [jpg] when a set number of pixels have changed between one image and the
next and write the updated image to a folder.
As an alternative to motion sending a text/email write something that detects
that image being saved and sends that text/email
just a suggestion for consideration,
Andrew
On 12-Jun. 10:59 a.m., Scott Barton wrote:
Correct. The Raspberry Pi will be running a program that will take a picture
every couple of seconds (the time between pictures taken will vary during the
print) and save it to the local file system. On that same Pi I would like to
run Motion detection program that when a new image file is saved to the
specified directory it would compare it to the previous file (or files if
needed) to detect if there was motion via a noticeable difference in the image.
If it detects 'motion' then trigger an alert like an email or text or
something.
Thanks!
________________________________
From: folkert <folk...@vanheusden.com><mailto:folk...@vanheusden.com>
Sent: Friday, June 12, 2020 2:43 AM
To: Scott Barton <scott_bar...@hotmail.com><mailto:scott_bar...@hotmail.com>
Cc: motion-user@lists.sourceforge.net<mailto:motion-user@lists.sourceforge.net>
<><mailto:motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] Using Motion to compare still images as they are
captured
Scott,
Do you mean retrieving a jpeg from a filesystem and then compare that?
On Thu, Jun 11, 2020 at 06:48:45PM +0000, Scott Barton wrote:
> Is there a way to use the Motion detection software to detect major
> differences between still images? If not, can this feature be added? I
> believe there would be a significant demand for it.
>
> The use case for this is in 3D printing where when a print fails, it results
> in a major change in the image, but normal printing just does nominal updates
> that could easily be filtered out with the settings to the Motion software.
> 3D Printers can use software called OctoLapse running on a Raspberry Pi that
> takes pictures to make very smooth time lapse videos by positioning the bed
> and printer head in the same spot for each picture after each layer is
> printed. Because printed layer heights are very small the change from picture
> to picture would be minimal during normal printing. But when a print fails
> it results in huge immediate changes in pictures. Because 3D prints can take
> several hours (even days) and are often done not under constant supervision,
> when a print fails you can waste several hours and a lot of filament as the
> 3D printer continues to print the failed print until noticed or finished.
> Being able to detect a failed print and getting notified early on would be a
> HUGE advantage for all 3D printers.
> https://plugins.octoprint.org/plugins/octolapse/
>
>
> Examples of timelapse 3D printing video fails. You could see how Motion
> detection software could fairly easily detect early on when the failure
> occurs. Just need a way for the software to compare images as the come in
> (saved to a specific directory on the Raspberry Pi) instead of analyzing a
> video stream.
> https://www.youtube.com/watch?v=ZGOq9X5J97k
> [https://i.ytimg.com/vi/ZGOq9X5J97k/maxresdefault.jpg]<https://www.youtube.com/watch?v=ZGOq9X5J97k>
> 3DBenchy Octolapse - Fail<https://www.youtube.com/watch?v=ZGOq9X5J97k>
> 3DBenchy Octolapse - Fail
> www.youtube.com<http://www.youtube.com>
>
>
> https://www.youtube.com/watch?v=_8YT0j8UAI0
> [https://i.ytimg.com/vi/_8YT0j8UAI0/maxresdefault.jpg]<https://www.youtube.com/watch?v=_8YT0j8UAI0>
> EPIC 3D PRINTER PETG FAIL! filmed with Octolapse |
> JanTec<https://www.youtube.com/watch?v=_8YT0j8UAI0>
> one of my first timelapses for YouTube videos - a fail! :( 3d printer -
> JanTec - Epic 3d printer fail
> www.youtube.com<http://www.youtube.com>
>
> -Scott
>
>
> [https://ipmcdn.avast.com/images/icons/icon-envelope-tick-green-avg-v1.png]<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
> Virus-free.
> www.avg.com<http://www.avg.com><http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
> _______________________________________________
> Motion-user mailing list
> Motion-user@lists.sourceforge.net<mailto:Motion-user@lists.sourceforge.net>
> https://lists.sourceforge.net/lists/listinfo/motion-user
> https://motion-project.github.io/
>
> Unsubscribe: https://lists.sourceforge.net/lists/options/motion-user
Folkert van Heusden
--
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