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Deinterleave

Convert interleaved CbCr frame to separate components

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Add-On Required: This feature requires the SoC Blockset Support Package for Xilinx Devices add-on.

  • Deinterleave block

Libraries:
SoC Blockset Support Package for Xilinx Devices / MPSoC / ZCU102
SoC Blockset Support Package for Xilinx Devices / MPSoC / ZCU106
SoC Blockset Support Package for Xilinx Devices / Zynq-7000 / PicoZed
SoC Blockset Support Package for Xilinx Devices / Zynq-7000 / ZC702
SoC Blockset Support Package for Xilinx Devices / Zynq-7000 / ZC706
SoC Blockset Support Package for Xilinx Devices / Zynq-7000 / ZedBoard

Description

The Deinterleave block accepts an input video frame consisting of interleaved Cb and Cr values. The output is separate Cb and Cr frames. Use this block to convert an interleaved frame from the HDMI FMC card to separate Cb and Cr frame components for connecting to Computer Vision Toolbox™ blocks. The frame size of the Cb and Cr output components is half the size of the associated Y component.

Note

This block does not support HDL code generation, and you cannot use this block inside the FPGA user logic.

The FPGA data path for YCbCr 4:2:2 format consists of a Y component and a time-interleaved CbCr component. The pixel-streaming subsystem targeted for the user logic on the FPGA must have these two input and output ports. When you convert the pixel stream to frames, use dummy data (duplicate the CbCr component) for the third component. The resulting frame has 3 full-sized components. To connect to Computer Vision Toolbox blocks, drop the duplicate component and separate the interleaved frame into the half-size Cb and Cr component frames. See the Pixels to Frame for YCbCr 4:2:2 block in the YCbCr 4:2:2 HDL Pixel-Streaming Algorithm template, and the example models.

Examples

Developing Vision Algorithms for Zynq-Based Hardware

Developing Vision Algorithms for Zynq-Based Hardware

Design and deploy a streaming video algorithm to the FPGA on a Zynq® device.

Open Script

Ports

Input

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Interleaved video frame, specified as a matrix. The matrix represents the chrominance component of an image in YCbCr 4:2:2 format. It contains interleaved Cb and Cr pixel values.

Output

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Blue chrominance frame, returned as a matrix. The matrix is half the size of the input matrix.

Red chrominance frame, returned as a matrix. The matrix is half the size of the input matrix.

Version History

Introduced in R2016a

See Also