How do I make Tricolour effects

[David Holden]

I want to mimic “Tri-colour” filters in image editing software, preferably Elements 5.

Basically I want to recreate the multiple exposure technique that used red green and blue filters, and three separate exposures on a single frame, resulting in any static object appearing normal, and any object which moved showing coloured edges.

I think I should be able to do this by setting the camera up on a tripod, take three images, of say a waterfall.

This is where I don’t know what to do next. I would strip the colours of the three images to give the same effect as the filters, i.e. RGB, then overlay and merge the individual R, G and B images.
How do I strip the colours, and make sure I end up with just the primary R, G, and B so that they end up with no tints after they are merged?

Help / advice appreciated.

 

[pxl8]

I don't know if you can do this in Elements but in Photoshop I would just the channels to copy and paste the R, G, or B channel from each shot into the same channel on a new image.

 

[Marcel]

Can you give us an example of what you mean? Im quite confused.

 

[Messiah Khan]

Can you give us an example of what you mean? Im quite confused.

Think of 3 exposures of someone walking, taken 1 second apart say. Then take the blue channel from one, the red from another and the green channel from the final exposure and combine them. Now imagine the effect. As pxl8 said, just copy the channel information you need into a new layer and choose the right blend mode (Multiply?)

 

[Brains]

Back in the day we used to use that effect with waves....waves crashing on the shore would show up as red green and blue.