Image Processing Reference
In-Depth Information
Exercise 1
The Traveling Head
Here is an exercise that can be a lot of fun but requires some careful
frame-to-frame registration. You need a computer with a program like
Dragon on it to work through this exercise. You also need either a digital
video camera that feeds into the computer with Dragon or a dslr still
camera. The best kind of lens to use is something that is wider than 50 mm.
A tripod is critical. You further need one human subject who is patient
and has a fair amount of stamina. You can shoot indoors, but this exercise
is much more successful if done outdoors in a variety of environments.
If you do shoot outdoors, then it would be best to choose an evenly lit
day, like an all sunny day or an evenly overcast day, to help reduce an
overactive frame due to strong light variations. Shooting “in the field” has
its challenges, and the first challenge you encounter will be your computer.
A laptop computer on battery power serves this approach. You can execute
this exercise without a computer and just a capture card or flash card in
your camera, but the results will not be as tightly controlled. This exercise
helps demonstrate the contrast required in a pixilated film for it to be
viewable and not overly active. The human subject is the constant and the
background changes radically throughout.
The idea of this film is to frame-by-frame focus on your human subject in a
head and shoulders composition with enough room in the frame around
the subject to reveal the environment that your subject is in. The head and
shoulders of your subject travel through different environments as though
they are floating through space. The subject can and should react to the
different people and situations past which he or she travels creating fun
expressions and actions.
ExErcisE Fig 1.A A human subject lined up head and shoulders in front of an environment.
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