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980 DP 1.4 Video Generator / Analyzer - User Guide
16.144
RampDif
16.144.1
Description
This image has two ramps. One on the top and one on the bottom. It enables you to show a contrast of color
depths. For example you can specify that the top ramp use 12-bit/component deep color and the bottom ramp
10-bit color. You can then view the image and see whether banding occurs and how pronounced, in the either of
the ramps. If the display under test supports 12-bit/component color, the top ramp will show a near uniform ramp
on the top (depending on the horizontal resolution of the active format). The bottom ramp will show more
pronounced banding because the range of the ramp is greater than the color depth.
This image is used to view two specific range of grayscale or color levels (ranges up to 512) throughout the entire
range allowed by deep color support in the generator (i.e. 36 bit or 4096). You need to set the pixel depth in the
generator to 24 bit (PELD = 32) in order to access 512 grayscale or color levels on a single image rendered on a
display. The following is a sample of the RampDif image is rendered on a display.
Page 462
Rev. A1
June 16, 2017
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