Experiment: Noise levels

[Ondra]

Which image has less noise? And how big difference do you see?

1:



2:

[zzubnik]

By a slim margin, number two feels cleaner to my eyes, after tabbing between them in Photoshop for several minutes.

[romullus]

I think #1 has a little bit more uniform noise, so it seems like less noisy. But i'm very tolerant to noise, so for me, difference is almost imperceptible.

[ecximer]

№1.
the difference is noticeable, but not much.

[CiroC]

Nº1 for me. The render seems to have a better contrast.

[Juraj]

I also think number one, maybe because the 'grain' seems smaller to me ?
Brother thinks opposite (num2), he's not 3d artist.

[Benjamin_F]

I think number one is more homogeneous, especially near the window.

[johan belmans]

for me number one, but hardly noticeable

[juang3d]

I agree with Benjamin_F, i used the wall near the window to make my choice.
Number one for me :)

Cheers.

[Siahpoosh]

#1 , is there any difference in lighting ? i can see a different in candle shadow on the wall.

[Captain Obvious]

"LtWCJTK.png" is marginally noisier. I measured. It's something like 2.4 % more noisy.

edit: So that's image 1 that's cleaner.

[Ondra]

"LtWCJTK.png" is marginally noisier. I measured. It's something like 2.4 % more noisy.

edit: So that's image 1 that's cleaner.

How did you measure it without the reference image? If you have some reliable metric for estimating noise tell me, I can use it for adaptivity ;)

[steyin]

They look exactly the same to me.

[Stan_But]

My vote for first also

[pokoy]

No 1 feels cleaner, but no 2 seems to have a more uniform noise across the whole image.