Creating and Capturing Images
Color "Wheels"
Use a systematic method to display many color combination in some order.
Waves
Use Periodic functions such as sine or cosine to make "waves" of colors.
3D "Graphs"
You could plot a mathematical function with two arguments by using color
as the third dimension. Examples:
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f(x,y) = sin (x) * cos (y)
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g(x,y) = sin (sqrt (x^2 + y^2))
Using the Digital Camera at the MECA
Lab
To take a photograph using the SGI camera, run the program "capture" from
your shell. Click on the icon in the lower-left hand corner of the capture
program's window and set it to still-photograph icon. Open the camera's
door, and adjust the focus by rotating the black rim of the lens. Set the
white-balance by using the program "videopanel". (Select "IndyCam-SignalControl"
from the "Pro" menu, then click on "White Balance".) You may also want
to adjust the shutter speed under the IndyCam-Signal Control panel. The
slower the shutter speed, the brighter the image. Moving objects can become
blurrier however, as you decrease the shutter speed.
Now you're ready to capture photos!
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Last updated July 21, 1998 by Hide Oki