Video and Vision Processing Suite Intel® FPGA IP User Guide

ID 683329
Date 10/02/2023

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Document Table of Contents
1. About the Video and Vision Processing Suite 2. Getting Started with the Video and Vision Processing IPs 3. Video and Vision Processing IPs Functional Description 4. Video and Vision Processing IP Interfaces 5. Video and Vision Processing IP Registers 6. Video and Vision Processing IPs Software Programming Model 7. Protocol Converter Intel® FPGA IP 8. 3D LUT Intel® FPGA IP 9. AXI-Stream Broadcaster Intel® FPGA IP 10. Bits per Color Sample Adapter Intel FPGA IP 11. Chroma Key Intel® FPGA IP 12. Chroma Resampler Intel® FPGA IP 13. Clipper Intel® FPGA IP 14. Clocked Video Input Intel® FPGA IP 15. Clocked Video to Full-Raster Converter Intel® FPGA IP 16. Clocked Video Output Intel® FPGA IP 17. Color Space Converter Intel® FPGA IP 18. Deinterlacer Intel® FPGA IP 19. FIR Filter Intel® FPGA IP 20. Frame Cleaner Intel® FPGA IP 21. Full-Raster to Clocked Video Converter Intel® FPGA IP 22. Full-Raster to Streaming Converter Intel® FPGA IP 23. Genlock Controller Intel® FPGA IP 24. Generic Crosspoint Intel® FPGA IP 25. Genlock Signal Router Intel® FPGA IP 26. Guard Bands Intel® FPGA IP 27. Interlacer Intel® FPGA IP 28. Mixer Intel® FPGA IP 29. Pixels in Parallel Converter Intel® FPGA IP 30. Scaler Intel® FPGA IP 31. Stream Cleaner Intel® FPGA IP 32. Switch Intel® FPGA IP 33. Tone Mapping Operator Intel® FPGA IP 34. Test Pattern Generator Intel® FPGA IP 35. Video and Vision Monitor Intel FPGA IP 36. Video Frame Buffer Intel® FPGA IP 37. Video Frame Reader Intel FPGA IP 38. Video Frame Writer Intel FPGA IP 39. Video Streaming FIFO Intel® FPGA IP 40. Video Timing Generator Intel® FPGA IP 41. Warp Intel® FPGA IP 42. Design Security 43. Document Revision History for Video and Vision Processing Suite User Guide

33.1. About the Tone Mapping Operator IP

The tone mapping operator (TMO) Intel FPGA IP dynamically adapts the processing of an image based on a regional (tile-based) approach. It improves the visibility of latent image detail and enhances the overall viewing experience.

You can configure the required number of bits per symbol and pixels in parallel. Typical applications include:

  • Medical imaging
  • Machine vision
  • Video conferencing
  • Surveillance
  • Automotive imaging
Figure 75.  Example of processing a real-life image using the TMO IPThe figure shows example results obtained after applying the TMO IP dataflow on a real-life image: left is the original image; right is the output image after TMO IP processing.

You provide and receive video data to the TMO IP in RGB format via the AXI4-Stream compatible Intel FPGA video streaming interfaces. The IP determines the size of the video busses from the number of pixels processed per clock cycle, the color bit depth, and the number of component streams parameters. The number of video component streams is fixed at 3. The IP supports:

  • Component bit depths of 8, 10 and 12-bit.
  • Pixels per clock of 1, 2 and 4.

You control the strength of the contrast enhancement for the output images provided by the TMO IP via an Avalon memory-mapped control interface. The data bus for the control interface is set to 32-bit to interface with an embedded CPU. During operation, you can configure the TMO IP using a software driver that controls all the IP parameters via a set of software APIs.

The TMO IP allows four modes of operations:

  • Passthrough
  • Contrast-enhancement
  • Horizontal and vertical slider
  • Region of interest

The Example of processing a real-life image using the TMO IP figure shows passthrough and contrast enhancement.

Region of interest allows you to define a specific window within the active picture, so that the contrast enhancement is only applied in that specific part of the output image.

Figure 76. Examples of horizontal slider and region of interest

The TMO IP supports RGB sampling. The sampling method at the output is always the same as the input. You must provide details of the current standard video resolution via the CPU control interface to ensure correct behavior. the IP only supports 4:4:4 progressive sampling. You should perform any deinterlacing and chroma up or down sampling externally to the TMO IP.