Sharpening
increases the contrast of pixels around the edges of objects to increase
the image’s definition or sharpness.
Open the page containing the image you want to
sharpen, select the image, and do either of the following:
Click the Sharpen button in the
image Property inspector.
Select Modify > Image >
Sharpen.
You can specify the degree of sharpening Dreamweaver applies
to the image by dragging the slider control, or entering a value
between 0 and 10 in the text box. As you adjust the sharpness of
the image using the Sharpness dialog box, you can preview the change
to the image.
Click OK when you are satisfied with the image.
Save
your changes by selecting File > Save, or revert to
the original image by selecting Edit > Undo Sharpen.
Note: You can only undo the effect of the Sharpen command
(and revert to the original image file) prior to saving the page
containing the image. After you save the page, the changes made
to the image are permanently saved.