IPS-VIDEO Altera, IPS-VIDEO Datasheet - Page 92

• 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

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Video and Image Processing Suite User Guide
Vertical Resampling (4:2:0)
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The luma-adaptive mode uses no memory or multipliers, but requires more logic
elements than the straightforward filtered algorithm.
Figure 5–2. 4:2:2 Data at an Edge Transition
The Chroma Resampler MegaCore function does not distinguish interlaced data with
its vertical resampling mode. It only supports the co-sited form of vertical resampling
shown in
Figure 5–3. Resampling 4.4.4 to a 4.2.0 Image
For both upsampling and downsampling, the vertical resampling algorithm is fixed at
nearest-neighbor.
Vertical resampling does not use any multipliers. For upsampling, it uses four line
buffers, each buffer being half the width of the image. For downsampling it uses one
line buffer which is half the width of the image.
All input data samples must be in unsigned format. If the number of bits per pixel per
color plane is N, this means that each sample consists of N bits of data which are
interpreted as an unsigned binary number in the range [0, 2
samples are also in the same unsigned format.
For more information about how non-video packets are transferred, refer to
Propagation” on page
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= Y’
= Cb
= Cr
= CbCr
= Y’CbCr
= Y’
= Cb
= Cr
= CbCr
= Y’CbCr
Figure
5–3.
CbCr Color
Value
Y’ Intensity
Sample No
4–11.
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Chapter 5: Functional Descriptions
N
– 1]. All output data
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May 2011 Altera Corporation
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Chroma Resampler
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Sample No
“Packet
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