IPS-VIDEO Altera, IPS-VIDEO Datasheet - Page 151

• Manufacturer Part Number: IPS-VIDEO
• Description: MegaCore Suite W/ 17 DSP Video/image Processing Functions
• Manufacturer: Altera
• Type: -r

Specifications of IPS-VIDEO

• Software Application: IP CORE, SUITES
• Supported Families: Arria GX, Cyclone II, HardCopy II, Stratix II
• Core Architecture: FPGA
• Core Sub-architecture: Arria, Cyclone, Stratix
• Rohs Compliant: NA
• Function: Suite of IP Functions for Video and Image Processing
• License: Initial License
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

Chapter 5: Functional Descriptions
Test Pattern Generator
May 2011 Altera Corporation
Test Pattern
The Test Pattern Generator MegaCore function can generate either a uniform image
using a constant color specified by the user at compile time or a set of predefined color
bars. Both patterns are delimited by a black rectangular border. The color bar pattern
(Figure
intensity (white, yellow, cyan, green, magenta, red, blue, black).
Figure 5–30. Color Bar Pattern
The sequence runs through the eight possible on/off combinations of the three color
components of the RGB color space starting with a 75% amplitude white. Green is on
for the first four bars and off for the last four bars, red cycles on and off every two
bars, and blue cycles on and off every bar.
The actual numerical values are given in
samples). If the output is requested in a different number of bits per color sample
these values are converted by truncation or promotion.
Table 5–26. Test Pattern Color Values
The choice of a specific resolution and subsampling for the output leads to natural
constraints on the test pattern. If the format has a horizontal subsampling period of
two for the Cb and Cr components when the output is in the Y’CbCr color space, the
black borders at the left and right are two pixels wide. Similarly, the top and bottom
borders are two pixels wide when the output is vertically subsampled.
White/Grey
Yellow
Cyan
Green
Magenta
Red
Blue
Black
5–30) is a still image composed with a set of eight vertical color bars of 75%
R’G’B’
(180,180,180)
(180,180,16)
(16,180,180)
(16,180,16)
(180,16,180)
(180,16,16)
(16,16,180)
(16,16,16)
Table 5–26
(assuming 8 bits per color
Video and Image Processing Suite User Guide
(180,128,128)
(162,44,142)
(131,156,44)
(112,72,58)
(84,184,198)
(65,100,212)
(35,212,114)
(16,128,128)
Y’CbCr
5–67