Image averaging

[kevinthenerd]

If I have a bunch of images (BMP, JPEG, GIF... name your raster format), is there a way to average the pixels in each image to come up with a blended composite?

Example:

Image 1:
123

Image 2:
321

Image 3:
024

Image 4:
420

Blended Composite (average of each pixel):
222

 

[LS20]

why dont you just overlay all pics in photoshop and set opacity to (100/#pix)%

 

[CanOWorms]

You can do it with Matlab, but it would require a little bit of programming.

 

[AgaBoogaBoo]

well, I'm not sure what you want to do, but:

You can use photoshop, create four layers, copy each image into its own layer, then set each layer's opacity to 25%

There will "blend" each of them equally.

 

[AgaBoogaBoo]

Originally posted by: LS20
why dont you just overlay all pics in photoshop and set opacity to (100/#pix)%

Doh! You beat me to it!

 

[kevinthenerd]

Originally posted by: AgaBooga
well, I'm not sure what you want to do, but:

You can use photoshop, create four layers, copy each image into its own layer, then set each layer's opacity to 25%

There will "blend" each of them equally.

But the stacking/layering/ordering would mess up the bias, wouldn't it? I'm not sure the numbers would stack quite like that. Wouldn't the top-most image have the most bias?

 

[AgaBoogaBoo]

Originally posted by: kevinthenerd

Originally posted by: AgaBooga
well, I'm not sure what you want to do, but:

You can use photoshop, create four layers, copy each image into its own layer, then set each layer's opacity to 25%

There will "blend" each of them equally.

But the stacking/layering/ordering would mess up the bias, wouldn't it? I'm not sure the numbers would stack quite like that. Wouldn't the top-most image have the most bias?

Nope. They'll all be equal.

 

[AgaBoogaBoo]

Do you have access to photoshop?

 

[kevinthenerd]

Originally posted by: AgaBooga
Do you have access to photoshop?

How do I do this in GiMP?

 

[Eli]

Are you going for a multi-exposure film picture look?

If so, you can use photoshop & probably a myriad of others.

 

[kevinthenerd]

Originally posted by: Eli
Are you going for a multi-exposure film picture look?

If so, you can use photoshop & probably a myriad of others.

Yes. I found out how to take night pictures with my cheap webcam by taking advantage of the statistical analysis of the so-called "noise."

 

[Eli]

Originally posted by: kevinthenerd

Originally posted by: Eli
Are you going for a multi-exposure film picture look?

If so, you can use photoshop & probably a myriad of others.

Yes. I found out how to take night pictures with my cheap webcam by taking advantage of the statistical analysis of the so-called "noise."

http://www.dpreview.com/learn/Image_Techniques/Double_Exposures_01.htm

 

[thomsbrain]

Originally posted by: kevinthenerd

Originally posted by: AgaBooga
well, I'm not sure what you want to do, but:

You can use photoshop, create four layers, copy each image into its own layer, then set each layer's opacity to 25%

There will "blend" each of them equally.

But the stacking/layering/ordering would mess up the bias, wouldn't it? I'm not sure the numbers would stack quite like that. Wouldn't the top-most image have the most bias?

no.

 

[thomsbrain]

Originally posted by: kevinthenerd

Originally posted by: AgaBooga
Do you have access to photoshop?

How do I do this in GiMP?

first reboot and insert your windows CD. follow the on-screen instructions. when you're done, reboot and insert your photoshop CD. follow the onscreen instructions.



😉 j/k, i have no idea.

 

[johnjbruin]

Originally posted by: thomsbrain

Originally posted by: kevinthenerd

Originally posted by: AgaBooga
Do you have access to photoshop?

How do I do this in GiMP?

first reboot and insert your windows CD. follow the on-screen instructions. when you're done, reboot and insert your photoshop CD. follow the onscreen instructions.

lol

 

[kevinthenerd]

Originally posted by: thomsbrain

Originally posted by: kevinthenerd

Originally posted by: AgaBooga
Do you have access to photoshop?

How do I do this in GiMP?

first reboot and insert your windows CD. follow the on-screen instructions. when you're done, reboot and insert your photoshop CD. follow the onscreen instructions.



😉 j/k, i have no idea.

The box said "requires Microsoft Windows 98 or better"

so I installed Linux 😉

 

[MattCo]

Post some examples once you get it figured out, sounds pretty cool.

-MC