|
Photomerge
Imagine standing in front of
a great vista with your camera poised, but you doubt that
the one or two pictures you will take, will do the scene justice.
What is the solution?
The answer is to turn to the
Photomerge tool within Photoshop Elements or Photoshop CS.

What is Photomerge?
The Photomerge command will
merge a series of panoramic images and blend them together
into one. Neat eh? However, this tool is the only tool we
can think of where we need to shoot the pictures specially
for the process. There are a few rules that we need to follow
at the shooting stage, but nothing too difficult and it is
mostly common sense really.
As we shoot the series of pictures
we need to give ourselves about a 30% overlap from image to
image. We may get away with an overlap of about 20%, but if
it is less than that, Photomerge may not be able to create
our panorama effectively. Having said that, we should not
overlap images too much. An overlap of 50% or more can make
the blending less smooth.
We must also avoid using the
zoom on our camera while taking the pictures or once again
Photomerge will have difficulty with what we are asking of
it.
We should also try and keep the camera level and using a tripod
with a rotating head will be a great help.
We should also take all the
pictures from the same viewpoint. Dont walk a few paces
to get a better view or the continuation of the Photomerge
will be spoilt.
Lastly, it will be better if
you can select a manual color balance on your camera and a
manual exposure setting. Our series of pictures will then
not vary greatly between each shot making our panorama more
successful.
There are quite a few things
to remember there, but here is a confession. We didnt
follow any of these for our example shots. This was because
we didnt consider Photomerge at the time of taking them.
We just stood on the spot and took the 6 images below with
a swivel to the right after each shot, so how will Photomerge
handle these pictures.
We start by selecting Photomerge
from the File Menu as we show below.

We will then be presented with
the browser window for us to select our images.

We can then click the browse
button and locate our images on our computer, high light all
our pictures and click open.

Our images will then appear in the browser
window we had earlier and we can click OK as we show below.

Now is the time to make the
coffee as Elements goes to work on our images.
Before we return with our coffee,
Photoshop will have given us the first draft of our panorama.
In our example Photoshop did a pretty fine job, but we could
see a few areas where the sky was not blended as smooth as
we would like. It is also a large palette that we have had
to reduce here.

If we then tick the advance
blending box we can hit the preview button for an idea of
what the final image will look like. The blends will now be
much better and we can complete the process by hitting the
OK button.
Now is the time to drink that
coffee you made as Photoshop performs its final wonders.

We may find our image has
some blank areas, but not to worry as we can fix those later.
First we need to select the crop tool from the toolbar to
crop the panorama into shape.

We can then click and drag
out the crop tool shape and adjust it with the toggles around
the outer edge. Hit the enter key or click the tick on the
options bar to finalize the crop. This may leave us with a
blank area at the top left, but we can put that right using
our clone tool.

Select the clone tool from
the toolbar as we show below.

While holding the Alt key
down click into the sky area close to the top left. This will
sample pixels and we can then release the Alt key and using
a soft edged brush paint those pixels into place over the
gap.
We then have a great panorama.

|