Step 2: Taking The Photos
My advice with this step is take lots and lots of photos. The more you have then the more you can choose from and it's better to have it and not need it than... well, you know! You'll probably be a small bit concerned about posing for the photo, don't worry about looking stupid, nobody's going to see anything but the finished product..... unless you decide to post an instructable about it.
Step 3: Setup
making sure that image (a) is selected, go to the adjustment tab and select desaturate. This will keep most of the details and remove colour from the picture. This effect should only be applied to image (b), there should be plenty of colour in image (a) for this to work.
Step 5: Adding Layer Mask
Step 6: Gradient Tool
Select the gradient type and pick the one that blends from black to background (represented as a black and white chequered grid), change the type from linear to radial and the opacity to about 80%.
Note that opacity in particular will vary depending on lighting and contrast of the background.
Step 7: Apparition
Keep revealing your "ghost" in portions, you can use Ctrl+z to undo any mistakes and try again until you feel you have a fairly good image. Adjust the opacity of the gradient tool as you go because some details need to shine through more than others, the shins and feet in particular need to be faded much more to hide the platform the subject is standing on.
when it comes down to the final details and touch-ups it's best to use the brush tool set to black with reduced opacity. This will vary so much that there's no point in giving the settings I used, just remember, less is more and you can always go over the same spot twice.
Step 8: Finishing
I hope you enjoyed my instructable! please vote for me in the Halloween Photo Editing Contest.
You might also like my previous instructable Terminate Yourself!
Let me know if you've any questions or need a step to be clearer. Thanks :)