To sharpen areas
You can increase the contrast between specific pixels in an image
with the Sharpen tool.
1
Select the Sharpen tool and click a paint object to put the image
in edit mode, if necessary.
2
To configure the Sharpen tool, double-click the tool. In the dia-
log box, adjust the following settings and click OK.
To gradually diminish the brush size as you drag, turn on
Size; to reduce the sharpening effect as you drag, turn on
Pressure in the Fade area. For both options, you can also
type a number in the Fade within text box to set how
quickly the effect fades.
If you use a pressure-sensitive tablet and want stylus pres-
sure to affect size and pressure, turn on Size and Pressure in
the Pressure Varies area.
3
Select a brush shape in the Brushes palette. For more informa-
tion, see Creating paint objects with painting tools on
page 31.588.
4
Adjust the Pressure setting in the Brushes palette. A setting of
1 affects the image slightly; 85 dramatically sharpens the image.
5
Drag the Sharpen tool in the image area you want to edit. Can-
vas applies the sharpening effect to pixels touched by the tool.
Saturating and desaturating colors
With the Sponge tool, you can add or remove gray content from spe-
cific areas of an image.
1
Select the Sponge tool and click a paint object to put the image
in edit mode, if necessary.
2
To configure the Sponge tool, double-click the tool to open its
dialog box.
To gradually diminish the brush size as you drag, turn on
Size; to reduce the Sponge effect as you drag, turn on Pres-
sure in the Fade area. For both options, you can also type a
number in the Fade within text box to set how quickly the
effect fades.
Sharpen tool
Sponge tool