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4 back light, 5 picture adjustment, 6 atr – Velleman CAMCOLBUL28Z User Manual

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CAMCOLBUL28Z

V. 01 – 13/06/2013

7

©Velleman nv

USER1
USER2

These are two user-definable setting that let you control red and
blue gain. This can be useful in environments that are saturated
with a single colour of light (for example bars or entertainment
venues), or it can help vision-impaired (colour-blind) users.

ANTI CR Anti colour rolling. Some types of lighting can cause colour bars

rolling over the screen. Use this setting to compensate.

MANUAL When you switch the camera on, it will acquire a white balance

value from the whitest object in view. The camera will then
reproduce white colour based on this value, regardless of
changes in colour temperature or other factors. If this value
gives insufficient colour quality, you can manually adjust the
balance between red and blue levels to improve the image.

PUSH

LOCK

Use this option to adjust white balance based on a white object

that you use as a baseline. Point the camera at the white object
and make sure it fills as much of the screen as possible. Click the
middle button on the joystick. The camera will now use the
colour of that white object as a baseline.

7.4 Back light

If there is a bright light in the background, for example from a window, the
image around it may be too dim to see clearly. In that case, use the
backlight function to compensate.

Display: BACKLIGHT
OFF

No backlight compensation

BLC

Back light compensation. The camera automatically brightens the
dim parts of the image.

HLC

Highlight compensation. Use this setting to compensate for extreme
differences between dark and light areas. For example, if someone
shines a bright light directly into the lens, the entire image can

become overexposed. With HLC, the camera masks the bright area
so that the area around the light source is still visible.

7.5 Picture adjustment

These are the common adjustments for video images: MIRROR to mirror
the image, BRIGHTNESS (brightness), CONTRAST (contrast),
SHARPNESS (sharpness), HUE (hue), and GAIN (gain).

7.6 ATR

Use the Adaptive Tone Reproduction (ATR) function to improve the colour
tones of subjects in images that contain both bright and dim areas (for
example, a wall with a window).