Ericsson SVP 2000, Reference Manual, Page: 128 / 196

Decoder Web-based GUI Control
5.5.8.8 Advanced Video Preprocessing
Table 5.24 Advanced Video Preprocessing Item Descriptions
Item Description Notes
Auto color
enhancement Performs an automatic setting of
the levels.
Brightness Brightness makes the video
darker or brighter. The value can be set from -100 to
100. It affects all pixels linearly,
unlike the Contrast filter which makes
dark pixels become darker and bright
pixels brighter
Contrast Increasing the contrast can
improve the output. Video encoded from PAL or NTSC
can sometimes look a bit grey, or
milky, when digitized. Contrast
adjustment makes the dark pixels
darker and the lighter pixels lighter.
Be careful not to increase the
contrast too much as the lighter
pixels have a tendency to become a
“white blur”. By lowering the contrast,
the image will become more flat or
greyish.
Gamma
Gamma compensates for the
differences between different
display technologies and devices,
such as when encoding for
handheld devices and terminals,
targeting Mac/PC, etc. Gamma is probably the most
common filter to use and might be
the most important correction to do.
Gamma is a non-linear filter. It only
affects the midrange tones but leaves
the darkest and lightest parts
unchanged. This is useful for
darkening or lightening a picture
without the risk of distorting the white
areas. Positive numbers (1 to 100)
make the image lighter. Negative
numbers (-1 to -100) make the image
darker.
Saturation
Saturation changes the intensity
of the colour. Moving the slider to the right
(increasing the values), intensifies
the colours, and vice versa. The
value can be set from -100 to 100.
5.5.8.9 Logo Insertion
Table 5.25 Logo Insertion Parameters
Group Item Description Notes
Logo Insertion Enables/Disables Logo
Insertion Logo
insertion
Preview logo Display the logo picture
present on device Only available if the Enable Logo
Insertion check box is selected
EN/LZT 790 0046/1 R1A 5-34