Image ratio for e.g. 768x288

Ellmegamurks · Post by **Ellmegamurks** » Mon Nov 06, 2006 11:55 am

Hello,

I am having troubles with configuring zm for non-interlaced images with the best possible resolution;

my thought was to use the maximum horizontal resolution (768px), because with 384x288 the recognition of faces in approx. 10m becomes hard to do.

Unfortunately i have found no way to correct the display to be 4:3 again, what would mean to double the vertical resolution to come to 768x576 again; (so the vertical resolution would "look" worse, but horizontal resolution would be the best possible)

sorry for my bad english and my unability to explain my thoughts,

many thanks in advance,
Eric

jameswilson · Post by **jameswilson** » Mon Nov 06, 2006 12:57 pm

are you trying to record at 720x288? This is possible but you do get a wide screen look. I do this and zm4ms can correct the image.

Ellmegamurks · Post by **Ellmegamurks** » Mon Nov 06, 2006 1:08 pm

Hi,

yes, my zm does modect with 768x288; (thanks to the zm-author zone-setup scales automatically with capture resolution!)

But i found no way to configure zm to correct the ratio for views;

would be very nice, because this way one can use full horizontal resolution without interlacing-issues.

I allready tried zm4ms, but i uses very much CPU-power (on my old PII/350...) and seams nearly unusable under this conditions,
and on my linux-notebook i wanted to try zm4linux, but the download-link IS "down"...

And i like the way zm works without any client-side software very much!

Eric

jameswilson · Post by **jameswilson** » Mon Nov 06, 2006 6:43 pm

yes zm4ms needs about 1.5 gig min really due to interpolation and things

drakkan · Post by **drakkan** » Tue Nov 07, 2006 9:12 am

jameswilson wrote:yes zm4ms needs about 1.5 gig min really due to interpolation and things

1.5 gig what? Ram? CPU?

what are the minimum system requirements for zm4ms?

thanks
drakkan

jameswilson · Post by **jameswilson** » Tue Nov 07, 2006 10:09 am

well im not sure, the lowest spec i have run it on is an 866Mhz with 512Mb. But i would recommend a 1.5 GHz processor and 512 Mb but if you turn things down it wont use as much power

drakkan · Post by **drakkan** » Tue Nov 07, 2006 1:29 pm

jameswilson wrote:well im not sure, the lowest spec i have run it on is an 866Mhz with 512Mb. But i would recommend a 1.5 GHz processor and 512 Mb but if you turn things down it wont use as much power

I'm testing zm4ms on a pentium 4 2.0GHZ with 512MB however it is really slow in image refresh I have refresh rate to 200

jameswilson · Post by **jameswilson** » Tue Nov 07, 2006 3:53 pm

when you say really slow, if set at 200 it will try to fo 5 fps, bu thats about the most it can do. What fps are you capturing at on the zm server. If your looking for full motion ie 25 fps then zm4ms cannot do this

drakkan · Post by **drakkan** » Tue Nov 07, 2006 4:16 pm

On zm server I setup 5 fps too, however if I see the image with firefox or ie the stream is good but crash after a while with zm4ms the stream is slow

,

I'm not able to view the stream from windows in a good and reliable way

jameswilson · Post by **jameswilson** » Tue Nov 07, 2006 4:38 pm

well im suprised that zm4ms cant hit 4fps, you can turn on a fps indicator on ch 1 in settings (under misc tab i think)
Just to test setup cam 1 and set all your refresh rates to 100, turn on the fps indicator
Open a camera view and close all but cam 1 and let me know what fps reports

drakkan · Post by **drakkan** » Wed Nov 08, 2006 9:30 am

I noticed some error in mysql query format too when I try a filter with cause=Motion so last night I trashed ubuntu dapper 6.06 with php-5.1.2 and mysql-5.0.22 and installed centos4.4 (mysql-4.1.20 and php-4.3.9),

without any change on client zm4ms run fine!!!

I have it running since about 10 hours now with no great issue, I have only some minor warning that I'll report on zm4ms thread

thanks for your support and excuse me for the annoiance and my bad english,

drakkan

jameswilson · Post by **jameswilson** » Wed Nov 08, 2006 9:39 am

lol i wondered what was up with it, glad your running.

PS for extended running ie weeks on end disable instant replay as this caches images to ram and really nails the local windows box