VBrick 6000 series Admin Manual page 24

Upscale Limit
Display Mode
Image Enhancement
Options
Changing the Logo
VBrick MPEG-4 decoders provide an option to superimpose a logo over the output stream
in the lower-right corner of the display. If the logo option is selected, the decoder will output
the default VBrick logo. You can also replace the default image with a customized logo as
explained here. For reference, t he default VBrick logo has the following parameters:
Size
Blending
Transparent (background) color black
Location
If you use the parameters shown above, the customization process is relatively easy and you
can go to Step 2 below. If you need to change any of these parameters, however, you must
follow all of the steps listed below.
To change the logo image
1. Create a new
file by using the template and instructions provided below in the Modifying the logo.htm
File. You can use any text editor to create this page.
2. Create a new
you observe the following guidelines.
File name
File type
Size
Color
14
The decoder can resize (scale) the received video image from the
encoder to one of 3 choices – full screen, max scale to 2X and
max scale to 4X.
The decoder can display the received video in one of three
modes: Letterbox, Crop, Stretch. This option is rarely used as
VBrick encoded video is produced in 4:3 format.
There are several auto enhancement options that the decoder can
apply to help improve the quality of the video being displayed.
The auto modes will remove filtering for higher rate streams
where the filtering will reduce detail. A manual mode is also
provided to allow the user to fine-tune the video. The de-
blocking filer reduces macro-blocking, the de-ringing filter
reduces the noise commonly seen around the edges of a video
object and the low pass filter reduces high frequency noise. A
combination of
can only be set in manual mode.
Pass Filter
151 x 81 pixels
50 percent
lower-right corner of screen
page (this page acts as a frame for the logo image). Create the new
logo.htm
file. You can use any image processing software as long as
logo620.gif
logo620.gif
.gif
Modify as necessary. Use the default logo (151x81 pixels) as a reference.
It is a good idea to keep black as the background color if the new logo
does not contain any black elements. If you change the background
color, you need to change the corresponding settings in
and
Deblocking Deringing
, and
Adaptive Low
.
logo.htm
© 2009 VBrick Systems, Inc.