Sharpen an image
The
Auto Sharpen command increases clarity or focus without the risk
of oversharpening an image.
The
Sharpen tool focuses soft edges in a photo to increase clarity or
focus. Oversharpening a photo gives it a grainy look. You can avoid
oversharpening by setting a lower Strength value in the options
bar. It’s best to make the sharpening subtle and increase it as
necessary by dragging over the area several times, building up the
sharpness each time.
The
Adjust Sharpness dialog box has sharpening controls not available
with the Sharpen tool or with Auto Sharpen. You can set the sharpening
algorithm or control the amount of sharpening that occurs in shadow
and highlight areas.  Adjust sharpening Automatically sharpen an image Select Enhance > Auto Sharpen.Sharpen areas of an image Original image (top), two faces sharpened correctly (bottom
left), and two faces oversharpened (bottom right) - Select the Sharpen tool
 .
- Set options in the options bar:
- Brushes menu
- Sets the brush tip. Click the arrow next to the brush
sample, choose a brush category from the Brushes menu, and then
select a brush thumbnail.
- Size
- Sets the size of the brush, in pixels. Drag the Size
pop‑up slider or enter a size in the text box.
- Mode
- Determines how the paint that you apply blends with the
existing pixels in the image.
- Strength
- Specifies the amount of sharpening that occurs with each
stroke.
- Sample All Layers
- Sharpens all visible layers. If this is deselected, the
tool sharpens only the active layer.
- Drag over the part of the image you want to sharpen.
Precisely sharpen an image- Select Enhance > Adjust
Sharpness.
- Select Preview check box.
- Set any of the following options to sharpen your image,
and then click OK.
- Amount
- Sets the amount of sharpening. Type a number in the box
or drag the slider to increase or decrease the contrast between
edge pixels, giving the appearance of greater sharpness.
- Radius
- Determines the number of pixels surrounding the edge
pixels affected by the sharpening. Type a number in the box or drag
the slider to change the radius value. As you increase the radius,
sharpening becomes more obvious.
- Remove
- Sets the sharpening algorithm used to sharpen the image.
Gaussian Blur is the method used by the Unsharp Mask filter. Lens
Blur detects the edges and detail in an image, and provides finer
sharpening of detail and reduced sharpening halos. Motion Blur attempts
to reduce the effects of blur due to camera or subject movement.
Select a blur option from the pop‑up menu.
- Angle
- Sets the direction of motion for the Motion Blur option
of the Remove control. Type a number in the box or drag the angle
dial to change the angle percentage to the left (counterclockwise)
or right (clockwise).
- More Refined
- Processes the file more slowly for more accurate blur
removal.
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