Apple Macintosh PhotoFlash - Manual (Page 92)

Blurring an image
You can use either the Blur command or the Blur tool to blur or soften part of
an image or an entire image, making it appear to be less in focus. The Blur
command is more convenient if you’re blurring the whole image, and it gives
you a preview of the change before you apply it. You can also use the Blur
command to blur multiple images represented by selected catalog thumbnails.
The Blur tool is sometimes convenient if you’re blurring just part of an image.
PhotoFlash blurs images by blending the colors of neighboring pixels. Both
the Blur command and the Blur tool allow you to adjust the amount of
blurring applied at one time. If you select the minimum amount, PhotoFlash
blends only immediately adjacent pixels, producing a subtle softening of the
image. As you increase the amount of blurring, PhotoFlash blends more and
more pixels until the image becomes unrecognizable.
Using the Blur command
To use the Blur command on part of an image, an entire image, or multiple
images represented by selected catalog thumbnails, make sure the window
you want the command to affect is frontmost, then follow these steps:
1 Choose Blur from the Enhance menu.
The Enhance dialog box appears.
82 Chapter 5
View of current
image
View of image after Blur
setting is applied
Drag this slider to increase or
decrease the Blur command’s effect.