This document discusses and defines three types of filters in Photoshop: blur filters, sharpen filters, and noise filters. Blur filters are useful for adding depth of field or covering flaws, and can create realistic lens blur or speed effects. Sharpen filters help correct imperfections and emphasize elements by increasing contrast between pixels. Noise filters allow adding or reducing noise and grain in photographs, with the reduce noise filter being useful for repairing old or damaged photos and the add noise filter having creative uses.

1.  Define the various filter effects.

2. In This Chapter, you’ll learn on:
 Explain and define the effects of the following filters:
o Blur Filter
o Sharpen Filter
o Noise Filter

3.  Blur Filters (Filter > Blur)
 The Blur Filters are useful in lots of situations, With Blur Filters you
can create an illusion of adding Depth of Field, to bring focus
to an object that you want or even to cover up some flaws that
you might get rid of.
The Lens Blur Filter
makes it very easy
to create a realistic
lens blur effect in
Photoshop.

4.  Blur Filters (Filter > Blur)
 The Blur Filters are useful in lots of situations, With Blur Filters you
can create an illusion of adding Depth of Field, to bring focus
to an object that you want or even to cover up some flaws that
you might get rid of.
Using the
Radial blur to
create the
speed effect

5.  Sharpen Filters (Filter > Sharpen)
 The Sharpen Filters are also great for correcting imperfections in
photographs, as well as putting emphasis on important
elements in a design. When working with blurred images, a
sharpen filter can be used to clarify and better define edges by
increasing contrast between pixels.
The Smart Sharpen
Filter used to sharpen
a crystal of the crystal
display.

6.  Sharpen Filters (Filter > Sharpen)
 The Sharpen Filters are also great for correcting imperfections in
photographs, as well as putting emphasis on important
elements in a design. When working with blurred images, a
sharpen filter can be used to clarify and better define edges by
increasing contrast between pixels.
Use of the
Sharpen more
filter to make the
statue more
visible.

7.  Noise Filters (Filter > Noise)
 Noise Filters are great for adding, or reducing noise and grain in
photographs. You may find filters such as the Reduce Noise
Filter extremely useful if you work with old, damaged, or dusty
photographs that need repair work done to them. The Add
Noise Filter can also come in handy, and has some creative
applications of its own.
Noise can easily be
reduced with the
Reduce Noise Filter in
Photoshop.