Poor Night Image Quality - IP8M-T2499E 2.8mm

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amcrestdude
Posts: 27
Joined: Thu May 21, 2020 11:20 am

Poor Night Image Quality - IP8M-T2499E 2.8mm

Post by amcrestdude »

Howdy All,

Had to replace one of my IP2M-852E and got a IP8M-T2499E 2.8mm about 6 months ago. Was expecting a whooping image quality upgrade (from 2MP to 8MP) but that was absolutely NOT the case at all. It seems like it was more of a downgrade.

Attaching some shots with this post for your view. In the daytime (no images included) the IP8M-T2499E 2.8mm seems to be ok as compared to the IP2M-852E. Not much better and at times when there is a lot of light it shows overexposure. Not impressed but can live with that.

At night the image (#1+2) is very grainy and cloudy with the IR on. Awful quality. In reading some of the posts on this forum made some adjustments but still very very poor quality at night. Ran some experiments in turning the street lights off and on to see what is happening but none of it seems to help with the quality. The best I seem to do at night to get a decent semi sharp / not too cloudy image is to turn off the IR. It seems like the more street lights you have the grainier the image is and if you turn the IR on it adds cloudiness to the graininess.

This is in SHARP contrast to the IP2M-852E that’s been in service for a few years now. As you can see from the image (#6), the IP2M-852E gives sharp and clear images. The only image at night where you cannot see much is with IR off and street lights off. At night with IR on and street lights on or off, it shows a sharp and clear image. This all out of the box with no adjustments made. Just great quality.

Pretty disappointed with the IP8M-T2499E 2.8mm performance especially at night. It seems like maybe it is too sensitive to light at night and does not work well with IR. Even my IPM-721’s perform better at night with IR.

As mentioned earlier, tried several (if not all) of the ideas and settings posted in this forum (including updating firmware) with other folks having similar issues. Any ideas as to improving the image appreciated.

Thank you in advance.
Attachments
6-2mp-ir-on.jpg
6-2mp-ir-on.jpg (486.2 KiB) Viewed 395 times
2-8mp-ir-on.jpg
2-8mp-ir-on.jpg (239.27 KiB) Viewed 395 times
1-8mp-ir-off.jpg
1-8mp-ir-off.jpg (253.78 KiB) Viewed 395 times
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Revo2Maxx
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Re: Poor Night Image Quality - IP8M-T2499E 2.8mm

Post by Revo2Maxx »

Sadly there is little more going on then one could explain with this. Also the photos are altered so it don't help trying to solve what the issue could be or how to solve it

So here is why I say this. First 1080P camera is showing a Larger sized area of photo so there is much more to see the total scene however still isn't the true size for looking at picture Quality.

Second it isn't fair for cameras to say one has a different quality picture over a different camera when they don't share the same space. Your camera that is said to be a 1080p is in a different area of VIEW and has different levels of light that is entering the Lens and sensor and can/will affect the a picture. Also another thing that can play in this is FPS and bitrate of each camera as well. Another thing that can hinder the quality of a picture is hardware like cables, router, internet speed and things that could take away the ability to make a perfect picture..

So one thing that might help if your camera has True WDR it could help however for most 8mp cameras it seems to make the picture worse where one of my 2mp cameras and using WDR in same scene can clear up and make the picture quality look nice at night however seems to also cause motion blur and can be because I can only use my system at a low FPS rate if the system would allow a higher FPS I would get a better image..

Also another trick that can help for some that have the option. Higher Live view and record motion and full time view at a lower Sub rate that can pull in the details one is looking for that could make it easier to ID someone or have better rate of picture. Say have the Live view at full view of 8mp and on Event for recording have it use the Sub channel on 1080p max frame rate and quality Bitrate.

For a Fair test, Set up a 8mp in the same FOV of your 2mp camera also post total image not cropping out anything that would help with understanding where the issue might be.

Also another issue to be fair if you have your 2 cameras in a NVR when you take your screen shot do it from the NVR connection and not the cameras Webui unless both cameras WebUI is used for connection. Main reason is that quality on a NVR or DVR over Webui could have lower quality photo then one that is coming from a Camera direct Webui.. This is off what I can see on my own system when using my Recorder looking at one of my cameras it is nice and clear on the GUI however once it goes over the Recorder and then though the WebUI for the Recorder the picture to my eye don't look as clear on the WebUI as it did on the Recorder GUI output.. Also should share same Recorders output because another thing I notice is my 4108e and 4108h recorders GUI or WebUI for them recorders don't look as sharp as my 2116-hs for the same camera and is one reason I prefer my 2116-hs over my other 2 NVR's

Just some ideas. Your image could be cleaned up with settings at night however it will or could cause motion blur and that isn't something anyone wants to deal with trying to have quality images for Detection and ID of a Subject.
Be Safe.
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