Specifications

Crestron DGE-2 Digital Graphics Engine
In graphics intensive applications such as touch screens, raising or lowering the color
depth of the displayed graphics can achieve a balance of performance and quality.
Lower color depths do not require as much frame buffer memory or display
bandwidth, allowing them to be generated and displayed more quickly. Increasing
color depth results in higher color quality at the expense of display speed and
responsiveness. By using mostly 8-bit or 16-bit graphics and holding 32-bit graphics
to a minimum (e.g. for a family photo, etc.), a sophisticated project can be created
that fits in the memory space provided while the touch screen remains very
responsive.
Relationship of Bits to Colors
NUMBER OF BITS NUMBER OF COLORS
1 bit Black and White
2 bits 4 Colors
4 bits 16 Colors
8 bits 256 Colors
16 bits 65,536 Colors (Highcolor)
24 bits 16.7 million Colors (Truecolor)
32 bits 16.7 million Colors plus Transparency
When creating a VT Pro-e project, the image size can be compressed and reduced in
the “Page Properties” dialog box for the entire page. The image size can also be
compressed and reduced using the “Image Properties” dialog box. A reduction in
image size saves a considerable amount of memory space for the project.
In VT Pro-e, the Compress checkbox permits the image to be compressed when
compiling. The 16 Bits checkbox converts a 24-bit or 32-bit image to 16 bits. This
conversion to a 16-bit image may cause the loss of some subtle shading. To
compensate for this, use the dithering to simulate the original shading. Check the
image with each of the available dithering types to determine which delivers the best
quality image.
Dithering type selection can be accessed from the “Page Properties” or “Image
Properties” dialog boxes in VT-Pro-e. Refer to the following illustrations.
Operations Guide – DOC. 6809E Digital Graphics Engine with DigitalMedia™ CAT Connectivity: DGE-2 • 55