Video Formats and Interfaces
Hardware video processing algorithms operate on serial data. For information on the serial protocol used in Vision HDL Toolbox™, see Streaming Pixel Interface.
You can simulate hardware-friendly streaming-pixel designs alongside frame-based designs. For instance, use frame-based algorithms, such as those designed using Computer Vision Toolbox™ or Image Processing Toolbox™, to verify a hardware-optimized design. Use the Frame To Pixels and Pixels To Frame blocks to convert video between frame-based and streaming-pixel formats.
Blocks
| Frame To Pixels | Convert frame-based video to pixel stream |
| Pixels To Frame | Convert pixel stream to frame-based video |
| Pixel Control Bus Creator | Create control signal bus for use with Vision HDL Toolbox blocks |
| Pixel Control Bus Selector | Select signals from control signal bus used by Vision HDL Toolbox blocks |
| Measure Timing | Measure timing of pixel control bus input |
| HV Counter | Count active dimensions of pixel stream |
| Pixel Stream Aligner | Align two streams of pixel data |
| ROI Selector | Select a region of interest (ROI) from pixel stream |
| Pixel Stream FIFO | Buffer input stream to create image lines that have contiguous valid pixels |
Objects
Functions
Topics
Streaming Video
Pixel stream control signal protocol used by Vision HDL Toolbox blocks and objects.
How to diagnose and fix problems related to the number of inactive pixels between lines and frames.
In Simulink
Configure the Simulink Environment for HDL Video Processing
Set up a Simulink® model for HDL image and video processing.
Integrate Vision HDL Blocks Into Camera Link System
This example shows how to design a Vision HDL Toolbox algorithm for integration into an existing system that uses the Camera Link® signal protocol.
Data type details of the pixelcontrol bus.
In MATLAB
Data type details of the pixel control structure.
Convert Camera Control Signals to pixelcontrol Format
This example shows how to convert Camera Link® signals to the pixelcontrol structure, invert the pixels with a Vision HDL Toolbox object, and convert the control signals back to the Camera Link format.
