Several....(wouldn't ya know it!).
I don't know if each object is on its own layer or not but the process is the same regardless:
To make a selection BY PIXELS you can Ctrl + Click the layer THUMBNAIL.
Pixels below 50% transparency will NOT have 'marching ants' but are still included in the selection bounds....this is just how Adobe do it for some reason.
Using Shift or Alt with Ctrl will add or subtract from the selection by clicking other thumbnails....even if the layer is not selected.
OR
Manually make a selection using the 'Rectangular Marquee' tool or any other tool under that category.
If you do have each 'object' on its own layer you do not need to be precise with your marquee, as long as you surround the pixels in question that's enough...this is stage 1...
... stage 2, place your cursor inside the selection area (the cursor should get a rectangle next to it) and hold down Ctrl....the cursor should now have the scissors next to it)......now click and drag and the selection should conform to the pixels on that layer.....and within the selection area.
Which of these you do depends on if you can move the pixels on that layer or not but once you have your selection right click within the area and select 'Make Work Path'.....set the tolerance, 1.0 is good but really depends on the size of the selection area...and voila!
Selection to Work Path.
You may need to refine the path as it can be a little random sometimes but again it really depends on the size of the selection area you are converting.
Ctrl + Click is probably the easiest way to make a selection but just remember about the 50% thing....its easy to assume its not worked correctly when in fact it has.
Try that....or any variation of.
Regards.
MrTom.
