Adobe® Photoshop® CS2 Studio Techniques

Tolerance

Getting the right Tolerance setting is essential to using the Background Eraser tool successfully. This setting determines how much Photoshop will be able to stray from the color under the crosshair (Figure 14.6). If the background you are attempting to remove is very similar to the subject in brightness or color, then you'll need to use a low Tolerance setting. Or, if the background is quite different from the subject, try a much higher Tolerance setting so that you can quickly remove the background without being overly careful about what you're dragging over.

Figure 14.6. Tolerance settings used, from top to bottom: Original image, 1%, 5%, 10%, 20%, 30%, 40%, 50%, 60%.

I don't have any hard and fast guidelines to give you because ...