American access system ADV-1000 Podręcznik Użytkownika Pobierz pdf (Strona 536)

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536 WIN-PAK User Guide

Grab Settings

These settings are applied to the camera when an

image is captured. If you are not using a flash, set

the Grab Brightness and Contrast the same as the

Video settings. If a flash is used, reduce both the

Brightness and Contrast settings lower than the

Video settings. This prevents the camera from

overexposing the picture.

The exact settings must be determined by

experimen-tation, as they vary depending on the type

of flash, distance from the subject, and other lighting

being used.

Brightness: Lightens or darkens the entire tonal

range of the image to be captured.

Contrast: Expands or contracts the entire tonal

range of the image to be captured.

Photo Settings

Photo settings are applied to the video image after it

is captured.

Brightness: Lightens or darkens the entire tonal

range of the captured image.

Compress: The captured image is saved as a .jpg file

which uses compression technology to decrease the

file size. If desired, use the slider to adjust the

compression of the saved image. The lower the

number, the greater the compression.However,

images lose quality as they are compressed, so avoid

over-compressing. A setting of 100 applies the least

amount of compression and provides the best image

quality. A setting of 30 applies the most

compression, but provides lower image quality.

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