TANDBERG evolution 5000 E5710, Инструкция по эксплуатации

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Creating and Downloading a Logo
Instruction Manual: evolution 5000 E5710 and E5720 Encoder Page E-3
ST.TM.E10074.1
E.1 Introduction
There is a logo overlay facility allowing broadcasters to trademark material
whereby the Encoder is able to overlay broadcasters trademarks/logos
onto the active video.
To overlay or brand the material with a logo, the logo must first be
downloaded into the equipment using the Ethernet TFTP protocol. Once
this has been done the logo can be enabled or disabled. Contact
TANDBERG Television for further details.
E.2 Creating a Logo Using OSD Creator
Osd Creator is an application for creating .osd format files for use with the
Osd Loader. It accepts Windows .bmp format files as input. It includes the
facility to introduce a mix component into the image, so that when the
image is superimposed onto video, some areas appear to be transparent.
The mix can be added manually, or by loading a separate key file.
The application also includes the facility to downsample the image to the
desired size.
The application runs under Windows 95 or Windows NT.
E.3 Using OSD Creator
E.3.1 Overview
To create an .osd file:
1.
Load a .bmp file.
2. Create transparency in the desired areas.
3. Downsample to the desired size.
4. Save as an .osd file.
E.3.2 Loading a .bmp File
Select File/Open from the menu, and choose a file with a .bmp extension.
The image is displayed in its own window. The application does not accept
compressed bitmaps or multi-planed bitmaps.
E.3.3 Creating Transparency
Overview
The area of the image that is to be made transparent is called the inactive
area. The rest is the active area.
Transparency can added manually, or by using a key file. A key file is a
.bmp file of the same size as the source file, with the active area of the
image coloured white, the inactive area coloured black, and intermediate
levels of transparency coloured grey.