Sunday, September 13, 2009

The Grow and Similar Commands


The Grow and Similar commands are very useful when used in conjunction with the Magic Wand tool to add to a selection. Both work according to the Tolerance setting set in the Magic Wand Options Bar.

The Grow command selects contiguous or adjoining areas of colour based on the Tolerance setting in the Magic Wand Options Bar.

1. Make a selection, Check that the Tolerance setting in the Magic Wand Options Bar is appropriate.

2. Choose Select > Grow, Pixels which fall within the Tolerance setting and are adjacent to pixels already in the selection are added to the selection.

The Similar command selects non-adjacent pixels that fall within the same Tolerance setting as set in the Magic Wand Options Bar.

1. Make a selection using any of the selection tools. Check that the Tolerane setting in the Magic Wand Options Bar is appropriate.

2. Choose Select > Similar. Pixels throughout the image that full within the Tolerance setting are selected.

Hot Tips ----

1. If necessary, change the Tolerance setting for the Magic Wand tool before using the Grow command to achieve a more or less inclusive result.
2. Using the Magic Wand tool, with the Contiguous option (in the Options Bar) deselected, is the equivalent of using the similar command.

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