Sanyo VCC-XZN600P Instruction Manual page 148

When the gamma value is 1, the angle of gradient of the graph will become 45°, in which case the signal output
of the camera is in direct proportion to the signal input.
When the gamma value is more than 1, the angle of gradient of the graph will exceed 45° and the contrast of the
image will become higher than usual.
When the gamma value is more than 1, the angle of gradient of the graph will exceed 45° and the contrast of the
image will become far higher than usual.
The term "gamma" came to be used because the curve expressed by the exponent used at the time of
gamma compensation resembles the Greek character γ.
Fig. 1. Gamma Adjustment: 0.45
Fig. 3. Gamma Adjustment: MODE1
If a camera is installed in the street, for example, the stabilizer makes it possible to set the compensation level of
the camera to LOW, MIDDLE, or HIGH according to the blurring level of the camera. When a compensation level
is set for the camera, the electronic zoom will expand the image (i.e., the angle of view will change). With the
level set to HIGH, the angle of view will become the narrowest, when the level of compensation is the greatest,
and the sway of the image will be suppressed most effectively. The resolution of the image, however, will drop.
Present condition
Fig. 2. Gamma Adjustment: 1
Fig. 4. Gamma Adjustment: MODE2
LOW (about 1.05x)
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