I scanned several black and white negatives. Every time I attempt to use the lasso tool in the Expert editing mode, I get the following error message: "Warning: no pixels are more than 50% selected. The selection edges will not be visible" When I click ok, the lasso tool disapears. How do I overcome this issue?
There probably is not enough contrast between the object that you are trying to select and the contiguous areas. Note that the negatives are monochrome.
Try using a mask to isolate the object from the background.
What version of photoshop elements and operating system are you using?
Sounds like your using a Tool other than the Lasso Tool?
Can you post a screenshot?
For whatever tool your using, check that the Feather in the Tool Options is set to 0 (zero) before using.