Making my image 3D

to make my image i had too...
start of my holding ctrl on your picture and duplicating the layer

 go to ;imahe', 'adjustments' and then onto 'Levels' when we were on levels we had to change the top layer to red, like below and out both the outputs on 0. Then click ok.

 then go onto the bottom layer and change the channel to green

 then after we had done this we had to click on layers and click screen which makes the image like this -