Posts tagged "Dodge/Burn/Sponge"

June 5, 2014

Refining the Edge of a Mask in Photoshop

If a section of a mask isn’t quite correct, try using the Dodge or Burn tool in the mask to subtly adjust the edge (by lightening or darkening the grayscale values within the transitional area). In this example, the original mask is too soft and as a result, we can see  a green halo around the edge of the leaf.

The original mask shows a green fringe around the edge of the leaf.

Looking at the original mask, we can see that the edge of the mask needs to be reduced in width as well as shifted towards the edge of the leaf. Note: This is also known as “choking” the mask. Moving in the other direction would be “spreading” the mask.

The original mask's transitional area needs to be reduced and shifted into (choked) the leaf.

Using the Burn tool on the mask’s edge, darkens the values in the transitional areas of the mask, narrowing the transitional area and moving the mask in towards the leaf. (I realize that the change is subtle in this illustration, but notice how the edge of the mask in the illustration below appears sharper than in the illustration above.)

Using the burn tool on the transitional edge of the mask (in the grayscale areas), darkened the

As a result of choking the mask, the green halo is removed from around the edge of the leaf.



5:11 AM Permalink
October 24, 2011

Toggle Between Dodge and Burn

Option (Mac) / Alt (Win) will toggle between the Dodge and Burn tools – without changing the brush size ( which is what happens if you actually select the other tool using the Tool panel or the shortcut Shift + O).

4:03 AM Permalink
September 3, 2010

Painting Straight Lines

To paint a straight line, hold the shift key while dragging a stroke. Or, click once with a painting tool, then release the mouse, hold the shift key and click again to draw a straight line between the two points.

5:32 AM Permalink



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