Channels and Move tool

[Kasper-V]

The current Practical Photography magazine has a piece on how to do this with Channels in Photoshop: simply move one channel to the right and another to the left. I can't get this to work in AP: if I select any channel and move it (Move tool) the others move with it, whether they're set to not editable or otherwise.
I've tried copying each channel to a new layer, but I can't find a way to recolour them and set a blend mode that gives the same effect.
Any ideas?

This was made in Paint Shop Pro, which has turned the RGB layers into CMY, just to add to my woes.

[Wosven]

Hi,

You need to dupplicate the layer as many times as you want, for example 4 for C, M, Y and B

And on each one, you clear the other channels, selecting a layer and right-clicking on the channel to hoose "erase" or similar ("effacer" for me):

Once done, you'll be able to move those layers and put them in mode Multiply:

There's a strange bug with the black channel in CMYK: erasing if give a full black channel instead of the white we've got doing it on the others. Use "inverse" to get white.

 

I suspect I miss something so her face isn't this mess, but this is the idea!

 

[Kasper-V]

Thanks Wosven -- why didn't I think of that? Too long shut up indoors, maybe!
It works; I found the Add blend mode worked for RGB. It's Clear in the English language version, by the way:--

I shall go and experiment with it and see what I can do.

[GarryP]

I haven’t read the article but you can ‘move’ a channel by making the other channels in the Channels Panel non-editable and then using the menu “Filter → Distort → Equations”. See attached video.

[lepr]

 

33 minutes ago, GarryP said:

I haven’t read the article but you can ‘move’ a channel by making the other channels in the Channels Panel non-editable and then using the menu “Filter → Distort → Equations”. See attached video.

Same method of locking channels but using Filter > Distort > Affine is an alternative.

[Kasper-V]

Thanks both -- I'll give these a try.