3D Pop out effect is very simple and easy to create with the help of photoshop cs5, It is one of the interesting to learn , Just follow my easy steps and create your own 3d effects with your photos. Try this simple project if there any doubt in this just raise the questions.
Step1: Go to File -> open -> select any image below diagram.
Step2: Double Click background layer make it as a layer
Step3: Make a Duplicate copy of this layer , Name it as a ground
Step4: Make another duplicate copy and give name as a pop out
Step5: Select layer 0, select gradient tool make gradient background, and then Using Select tool select the image like below diagram
Step6: Right click select free transform
Step7: Right click again select perspective
Step 8 : Pressing corner drag the selection like below diagram
Step 9 : Select skew adjust the selection area like below diagram
Step 10 : Select the ground and click layer mask
Step 11 : Select the popout layer choose the quick selection tool select the image.
Step12 : Select the diagram like below diagram
Step 13 : Select Popout layer and click add layer mask like below diagram
Step14 : Then your image displayed like this
Step 15 : Select ground layer click add layer style button check the drop shadow , inner glow, stroke and fix the size is 16px like below diagram.
Step 16 : Finally your result look like this.