Image Averaging to Reduce Noise

[JayF]

Hello:

I would like to use "Stack Images" in PWPro 4.0 to reduce noise. Am I correct in assuming that I would just load the 4 images into the "Stack Images" dialogue and leave the "Amount" sliders set to 100%?

Cheers! Jay

[jsachs]

Yes

[JayF]

Thanks Jonathan

Cheers! Jay

[willynhs]

Hello JayF,

Take a look at http://www.cambridgeincolour.com/tutorials.htm.
It has a great tutorial about noise reduction by image averaging and it has a lot of other tutorials and techniques.
He uses photoshop but it's easy to use with PWP.

Willy Nijenhuis

[JayF]

Hello Willy Nijenhuis:

Thanks. In fact, it was the "Cambridge In Colour" tutorial that generated my question about image averaging with the stack images transform. I just happened to be in the midst of some night photography and was looking for some noise reduction techniques.

It seems to work quite well.

Cheers! Jay

[bobsofpa]

Yes, averaging to reduce noise does work but it has the same iimitation as HDR. There must be zero movement during the time the shots are taken. Even a gentle breeze will move leaves, tree limbs, etc that will lead to a soft photograph.