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Today's Topics:

   1. Re: motion detection not whole screen but just a specified
      portion of the screen (Dougie Nisbet)
   2. Re: motion detection not whole screen but just a specified
      portion of the screen (Joerg Weber)


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Message: 1
Date: Fri, 1 Jun 2018 21:27:10 +0100
From: Dougie Nisbet <dou...@katsura.uk>
To: motion-user@lists.sourceforge.net
Subject: Re: [Motion-user] motion detection not whole screen but just
        a specified portion of the screen
Message-ID: <0110a234-0b35-6b35-ff2f-33252db51...@katsura.uk>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Crikey. Good point. I've used mask files and always assumed they were 
working. Now I'm not so sure. I gave up on two nest box monitoring 
projects because of so many false positives. I've created them in GIMP 
too. I'll bear this in mind the next time I create a mask file.

On 01/06/18 20:14, Kinney Baughman wrote:
> If you add a mask file, turn the setup feature on to make sure motion 
> recognizes the file as a mask file.
>
> If it doesn't, it'll throw an error.
>
> That motion was *not* recognizing my mask file escaped me for longer 
> than I want to admit.
>
> My advice is to take one of the jpg's issued by motion and use it as a 
> base file from which to create the mask.? Follow the instructions in 
> the guide.
>
> I made one from scratch using the exact same dimensions as the motion 
> files I was capturing, edited in GIMP and motion didn't like it.
>
> I followed the same process with a motion generated file and I was fine.


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Message: 2
Date: Fri, 01 Jun 2018 21:24:25 +0000
From: "Joerg Weber" <mot...@alcatraz.ath.cx>
To: "Motion discussion list" <motion-user@lists.sourceforge.net>
Subject: Re: [Motion-user] motion detection not whole screen but just
        a specified portion of the screen
Message-ID: <895c2d4158100a6b75c05a3f50b02f2d@10.1.1.1>
Content-Type: text/plain; charset="utf-8"

It is turned on by specifying the mask file. If you turn on 'setup mode' 
temporarily, you can verify that the mask is actually in use.

Brgds Joerg.
1. Juni 2018 22:11 Uhr, "mylin"  schrieb:
>> turn the setup feature on to make sure motion recognizes the file as a mask 
>> file

How do you turn the mask feature on?

Thanks.
Martin
On 18-06-01 03:14 PM, Kinney Baughman wrote:  If you add a mask file, turn the 
setup feature on to make sure motion recognizes the file as a mask file.
If it doesn't, it'll throw an error. 
That motion was *not* recognizing my mask file escaped me for longer than I 
want to admit. 
My advice is to take one of the jpg's issued by motion and use it as a base 
file from which to create the mask. Follow the instructions in the guide. 
I made one from scratch using the exact same dimensions as the motion files I 
was capturing, edited in GIMP and motion didn't like it. 
I followed the same process with a motion generated file and I was fine. 
YMMV. 
On Fri, Jun 1, 2018 at 2:51 PM, mylin  wrote:  
So is this where and how I added it to the conf file?

# PGM file to use as a sensitivity mask.
# Full path name to. (Default: not defined)
; mask_file value
mask_file /home/martin/motion_mask/motion_mask.pgm
On 18-06-01 02:29 PM, mylin wrote:  
Yup, I just found that same web link on how to do this.

        http://www.lavrsen.dk/foswiki/bin/view/Motion/ConfigOptionMaskFile 
(http://www.lavrsen.dk/foswiki/bin/view/Motion/ConfigOptionMaskFile) 

Thank you.
On 18-06-01 01:20 PM, Terry Parker wrote:  Create a mask file:
http://www.lavrsen.dk/foswiki/bin/view/Motion/ConfigOptionMaskFile 
(http://www.lavrsen.dk/foswiki/bin/view/Motion/ConfigOptionMaskFile) 
also area_detect is an option: 
http://www.lavrsen.dk/foswiki/bin/view/Motion/ConfigOptionAreaDetect 
(http://www.lavrsen.dk/foswiki/bin/view/Motion/ConfigOptionAreaDetect) 
On Fri, Jun 1, 2018 at 11:37 AM, mylin  wrote:Hello,

Normally motion detects anything that moves or changes anywhere that is viewing 
on the cam.

Is there way to configure it so that only a specific area or size of the 
viewing will detect motion?

Thanks.
Martin

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