Video and Vision Processing Suite Intel® FPGA IP User Guide
                    
                        ID
                        683329
                    
                
                
                    Date
                    2/15/2022
                
                
                    Public
                
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                        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. Chroma Resampler Intel® FPGA IP
                    
                    
                
                    
                        10. Clipper Intel® FPGA IP
                    
                    
                
                    
                        11. Clocked Video to Full Raster Converter Intel® FPGA IP
                    
                    
                
                    
                        12. Color Space Converter Intel® FPGA IP
                    
                    
                
                    
                        13. Full Raster to Clocked Video Converter Intel FPGA IP
                    
                    
                
                    
                        14. Full Raster to Streaming Converter Intel® FPGA IP
                    
                    
                
                    
                        15. Guard Bands Intel® FPGA IP
                    
                    
                
                    
                        16. Mixer Intel FPGA IP
                    
                    
                
                    
                        17. Pixels in Parallel Converter IP
                    
                    
                
                    
                        18. Scaler
                    
                    
                
                    
                        19. Tone Mapping Operator Intel® FPGA IP
                    
                    
                
                    
                        20. Test Pattern Generator Intel FPGA IP
                    
                    
                
                    
                        21. Video Frame Buffer Intel FPGA IP
                    
                    
                
                    
                        22. Video Streaming FIFO Intel FPGA IP
                    
                    
                
                    
                        23. Warp Intel® FPGA IP
                    
                    
                
                    
                    
                        24. Document Revision History for Video and Vision Processing Suite User Guide
                    
                
            
        8.2. 3D LUT IP Parameters
 The 3D LUT IP offers compile-time parameters. 
  
 
  | Name | Values | Description | 
|---|---|---|
| Video data format | ||
| Number of pixels in parallel | 1 to 8 | Number of pixels transmitted every clock cycle. | 
| Input bits per color sample | 8 to 16 | Number of bits per color sample at the input. | 
| Output bits per color sample | 8 to 16 | Number of bits per color sample at the output. | 
| Control settings | ||
| Separate clock for control interface | On or off | Turn on to run the run-time control interface on a different clock domain. | 
| LUT read interface | On or off | Allows you to read LUT contents via the CPU interface. | 
| Enabled out of reset | On or off | 
 | 
| LUT settings | ||
| Size | 9, 17, 33, 65 | Size of each LUT dimension. | 
| Bits per color | 8 to 16 | The number of bits per color in the LUT (LUT_DEPTH). | 
| Output alpha channel | On or off | Turn on to add alpha channel to the LUT (RGBA). | 
| Bypass alpha | 0 to 2 LUT_DEPTH -1 | The alpha value output in bypass mode. | 
| Double buffered | On or off | Double the memory for seamless LUT programming and switching: 
 | 
| Buffer 0 and Buffer 1 | ||
| Initialize from file | On or off | Turn on to initialize the LUT from the initialization file. | 
| Init file | user file | Optional initialization file. | 
| Init file type | normalized, integer | Type of coefficients in the initialization file: 
 | 
    Figure 13. 3D LUT GUI
     
      
 
     
   
 
   
 
    LUT Initialization File
You can initialize each buffer of the LUT from reset by providing a compatible 3D LUT file to Init file in the GUI. The IP generation process converts the LUT file into RAM initialization .hex files that get built into the firmware during compilation. The script can read .cube format files, or any 3D LUT files that follow these conventions:
- RGB component order (must match the video stream’s order)
- Components change first from left to right, i.e. R first, G second, B third
- If you turn on alpha, you append the alpha value as a fourth component (RGBA)
- The data type must match the IP GUI parameter and may either be: 
      - normalized fixed- or floating-point numbers between 0.0 to 1.0
- integers between 0 and 2LUT_DEPTH-1 (e.g. 10-bit: 0 to 1023)
 
- The data type must be the same for the whole file
- Lines starting with # or any letter are ignored