How to reduce random pixel snowflakes

[10geezer]

This is image about car length from cam, 6 mouse clicks of zoom
Manual 1/120 gain 0~35 exposure comp 100
On a 8mp hfw5849

Sharpness 72 as sometimes mouth sort of melts away the lips,gamma 46

How to tweak out the snowflakes

Thanks

 

[paul@austins.tv]

That looks like digital zoom, so it's going to look poor.
I would bring the sharpness way down to 40-45. Hopefully this will help the melting lips.

 

[wittaj]

Yep that is digital zoom and that only works in the movies and TV. You may get by with a little, but not much.

If you need to digital zoom, then you have the wrong camera. You need optical zoom for the distance you want to obtain cleaner images of.

Thread 'The Importance of Focal Length over MP in camera selection'

Mar 28, 2022

At the urging of several folks here, I created a thread to show the importance of focal length and how focal length can be more important than megapixels (MP).

I mentioned some of this in the post regarding The Hookup’s latest video demonstrating different cameras, including one sold from a forum favorite here @EMPIRETECANDY , but this post will put it all in one place where we can point a NOOB to. The cameras I am highlighting were purchased from @EMPIRETECANDY

Almost every big box store, consumer grade cameras and all-in-one-box kits come with either 2.8mm or 3.6mm...

• wittaj
• Replies: 108
• Forum: Pics & Videos

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[bp2008]

It would help to see that in motion to be more sure of what it is. If this was captured at night and the noise moves randomly with every frame then it is just sensor noise due to low light and you may be able to improve it by increasing 3D noise reduction. However this can have negative consequences particularly in low light as it can cause moving objects to be more ghosty or streaky.

In case compression is contributing to this, it could also help to increase the bit rate by a large amount (like double). Do this in CBR encoding mode so you aren't limited by a quality target in VBR mode. But most IP cams struggle to encode really high bit rates, so that might not be practical or beneficial enough to outweigh the additional storage cost.