bigredfish
Known around here
Not in daytime. It should be much better. Slowly increase Exposure value to 0-4, 0-5 until it brightens
Its an 8MP camera on a 4MP sensor so it wont be awesome, but it should be much better
Frustrate: Blur....
- Thread starter bbwolfe
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Not in daytime. It should be much better. Slowly increase Exposure value to 0-4, 0-5 until it brightens
Its an 8MP camera on a 4MP sensor so it wont be awesome, but it should be much better
bigredfish
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bigredfish
Known around here
I assume thats a 5 series 8MP Z4? (I hate DahuaUS part #s)
You folks are amazing. Thank you so much for this help. I am walking through each setting, one by one, trying to get as clear of an image I can now.
bigredfish, can't thank you enough for such specific information.
bigredfish, can't thank you enough for such specific information.
Wow.. ... These are the images I want!
Yeah you got the 5842, which is the 8MP shoved on a sensor designed for 4MP, which those of us that have been around know that those can be problematic whenever a camera isn't on an ideal MP/sensor ratio.
I think you are suffering from too many MP on that sensor and a car comes by and the shutter adjusts and it does a quick focus again. Plus that camera suffers from the algorithm throwing some WDR on it that we can't adjust out.
You will probably benefit from a fixed shutter speed instead of a range. Try 1/2000
Then stop a car or have someone walk out to the center of that field of view on the road and hit autofocus and then set it to manual focus.
I think you are suffering from too many MP on that sensor and a car comes by and the shutter adjusts and it does a quick focus again. Plus that camera suffers from the algorithm throwing some WDR on it that we can't adjust out.
You will probably benefit from a fixed shutter speed instead of a range. Try 1/2000
Then stop a car or have someone walk out to the center of that field of view on the road and hit autofocus and then set it to manual focus.
bigredfish
Known around here
How are you exporting the clip? I ask because thats a low-res compressed image. Not main stream
During all this work today, I made sure it was the main stream and had turned off sub-stream just to make perfectly sure.
I will export a fresh image tomorrow directly from BlueIris to see what I ended up with after today's adjustments.
Flintstone61
Known around here
You might be better off with the 4 megapixel version of that camera.
View attachment 20250211-0716-56.4508257.mp4
View attachment 20250211-0718-15.1465466.mp4
View attachment 20250211-0716-56.4508257.mp4
View attachment 20250211-0718-15.1465466.mp4
bigredfish
Known around here
At 736kb I can assure you its low res. which might help explain the horrible compression artifacts in the image.
(For daytime, a 4MP camera wont do anything different than the one you have.)
Its possible BI is introducing some of your problems. We need a BI guy (I'm not) to weigh in
Here are the current encode settings.
I see now that somehow the substream became enabled again. I had turned it off at the start of this tuning....
I will increase the substream bit rate and take a new snapshot.
Attachments
A jpg file exported from BI will be smaller than a file exported out of the NVR or computer.
In some instances it may or may not make a noticeable impact to the image quality for a still image. If I export out as jpg is under 1000kb and as a bmp it is 14,000kb, but I can't tell the difference LOL.
In this instance, I think Dahua nailed the algorithm for the 5442 series and even in the day the 5842 series struggles (which as you know is 8MP shoved on the same sensor as the 4MP). Either they made no attempt at changing the algorithm to address the 8MP or they tried and couldn't get it quite right.
bigredfish
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bigredfish
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