It is possible to
add atmosphere to our images and one of my Favourites
is to add some mist to a landscape. It is an easy
procedure using Photoshop's Graduation tool and
you can also vary the opacity, colour and the gradation
depth to suite your tastes. Call up an image of
your own something like the one below will work
well and adjust the levels.

To do this call
up the levels palette by selecting Image/Adjust/Levels
from the menu bar or by use of the shortcut keys
Ctrl+L. Try the auto button first if you are new
to the levels palette as it often gives very good
results. Alternatively and for more control select
the red channel and adjust the input sliders to
the first group of pixels on each end of the histogram.
Repeat this process for the blue and green channels
as shown below.

You can see from
the image below that adjusting the levels accurately
gives a dramatic improvement to the basic image.

The next stage is
to open the Layers palette by selecting Window/Show
layers or by using the shortcut key F7. This key
turns the layers palette on or off with each press.
This is very useful to keep the desktop clear while
you are working. To create the mist we need to create
a new blank layer above our image and to do this
we click the centre icon of the three at the bottom
of the layers palette and Photoshop will create
the new layer for you as shown below.

Tip. A new blank
layer allows you more adjustment and is better than
placing the next stage directly onto the base image.
With the new layer selected ensure that you have
white chosen as your foreground colour and then
double click the Gradation tool to bring up the
panel below.

When the gradation
palette appears you need to select foreground to
transparent. You can now click anywhere along the
top of the image and draw a line down from the top
to the bottom. This tells Photoshop that the foreground
colour starts solid at the top and the length of
the line decides on the length of the gradation.
Like all Photoshop
tools this needs just a little practice and you
will quickly get the hang of it. You may find that
the gradation effect created is not right. It may
continue too far down the image or not far enough.
Simply hit undo from the Edit menu or better still
use the quick keys Ctrl+Z. I had to have a couple
of tries until my gradation ended where I wanted
it.
Tip. Add some noise
to this gradation layer so that it matches the pixel
structure of the original picture. To do this, enlarge
a section of the image so you can see the gradation
and the original landscape. Add noise from the filter
menu to the gradation until it matches the base
image. This will look much more believable in the
finished work.
At this stage I
found that the saturation of the landscape was a
little high for the effect I was trying to create
so I reduced it by selecting Image/Adjust/Hue/Saturation
or via the shortcut keys Ctrl+U shown below.

I finally added
a boarder to my image and a thin line round the
edge to make the landscape stand out. The technique
for this can be found in another of my tutorials
called Adding a Border.
What must be remembered
with these techniques is that the right effect needs
to be put with the right subject. If you carried
out this type of manipulation on a brightly lit
sunny scene the end result would look unnatural.