PS Background eraser Function detailed

Prepare to write a series of tutorials, the purpose of which is to explore some of the less common but can let us get a lot of unexpected harvest features. This is a good way to get a lot of adobe fans to look for some of the less-visible features of Adobe software, and let them play a bigger role in our work. Today we are going to talk about the background eraser tool, this tool is very wonderful, I usually do not tell him.

To get to the end, the book before the text, why this tool is not? How can it be so wonderful? The people we've done design know, sometimes processing pictures, to do some small manuscript for customers to confirm, sometimes buckle picture buckle for a long time, but in exchange for the manuscript was shot news, mind how depressed, in fact, these proofs are mainly to see a large effect, do not need to do very fine, So the background eraser is a big deal. Don't just say no, let's look at what the background eraser tool can do:

First look at the situation in the Tools Options bar, the following figure is the software's default state of the Background Eraser toolbar.

Do not do anything, on the picture together, you can see that the results are not ideal, the part of the hand has been erased.

Press Ctrl+z to return to the previous step, the tool bar to change the tolerance to 30%, again on the drawing together, you can see the results are good. This shows that the tolerance used here is the same as the tolerance of the magic wand tool, and the background eraser tool works by color tolerances.

When I use the background eraser tool again in the picture, the result is not ideal.