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 IP
                    
                    
                
                    
                        8. 1D LUT IP
                    
                    
                
                    
                        9. 3D LUT IP
                    
                    
                
                    
                        10. Adaptive Noise Reduction IP
                    
                    
                
                    
                        11. Advanced Test Pattern Generator IP
                    
                    
                
                    
                        12. AXI-Stream Broadcaster IP
                    
                    
                
                    
                        13. Bits per Color Sample Adapter IP
                    
                    
                
                    
                        14. Black Level Correction IP
                    
                    
                
                    
                        15. Black Level Statistics IP
                    
                    
                
                    
                        16. Chroma Key IP
                    
                    
                
                    
                        17. Chroma Resampler IP
                    
                    
                
                    
                        18. Clipper IP
                    
                    
                
                    
                        19. Clocked Video Input IP
                    
                    
                
                    
                        20. Clocked Video to Full-Raster Converter IP
                    
                    
                
                    
                        21. Clocked Video Output IP
                    
                    
                
                    
                        22. Color Plane Manager IP
                    
                    
                
                    
                        23. Color Space Converter IP
                    
                    
                
                    
                        24. Defective Pixel Correction IP
                    
                    
                
                    
                        25. Deinterlacer IP
                    
                    
                
                    
                        26. Demosaic IP
                    
                    
                
                    
                        27. FIR Filter IP
                    
                    
                
                    
                        28. Frame Cleaner IP
                    
                    
                
                    
                        29. Full-Raster to Clocked Video Converter IP
                    
                    
                
                    
                        30. Full-Raster to Streaming Converter IP
                    
                    
                
                    
                        31. Genlock Controller IP
                    
                    
                
                    
                        32. Generic Crosspoint IP
                    
                    
                
                    
                        33. Genlock Signal Router IP
                    
                    
                
                    
                        34. Guard Bands IP
                    
                    
                
                    
                        35. Histogram Statistics IP
                    
                    
                
                    
                        36. Interlacer IP
                    
                    
                
                    
                        37. Mixer IP
                    
                    
                
                    
                        38. Pixels in Parallel Converter IP
                    
                    
                
                    
                        39. Scaler IP
                    
                    
                
                    
                        40. Stream Cleaner IP
                    
                    
                
                    
                        41. Switch IP
                    
                    
                
                    
                        42. Text Box IP
                    
                    
                
                    
                        43. Tone Mapping Operator IP
                    
                    
                
                    
                        44. Test Pattern Generator IP
                    
                    
                
                    
                        45. Unsharp Mask IP
                    
                    
                
                    
                        46. Video and Vision Monitor Intel FPGA IP
                    
                    
                
                    
                        47. Video Frame Buffer IP
                    
                    
                
                    
                        48. Video Frame Reader Intel FPGA IP
                    
                    
                
                    
                        49. Video Frame Writer Intel FPGA IP
                    
                    
                
                    
                        50. Video Streaming FIFO IP
                    
                    
                
                    
                        51. Video Timing Generator IP
                    
                    
                
                    
                        52. Vignette Correction IP
                    
                    
                
                    
                        53. Warp IP
                    
                    
                
                    
                        54. White Balance Correction IP
                    
                    
                
                    
                        55. White Balance Statistics IP
                    
                    
                
                    
                        56. Design Security
                    
                    
                
                    
                    
                        57. Document Revision History for Video and Vision Processing Suite User Guide
                    
                
            
        
                                    
                                    
                                        
                                        
                                            31.4.1. Achieving Genlock Controller Free Running (for Initialization or from Lock to Reference Clock N)
                                        
                                        
                                    
                                        
                                        
                                            31.4.2. Locking to Reference Clock N (from Genlock Controller IP free running)
                                        
                                        
                                    
                                        
                                        
                                            31.4.3. Setting the VCXO hold over
                                        
                                        
                                    
                                        
                                        
                                            31.4.4. Restarting the Genlock Controller IP
                                        
                                        
                                    
                                        
                                        
                                            31.4.5. Locking to Reference Clock N New (from Locking to Reference Clock N Old)
                                        
                                        
                                    
                                        
                                        
                                            31.4.6. Changing to Reference Clock or VCXO Base Frequencies (switch between p50 and p59.94 video formats and vice-versa)
                                        
                                        
                                    
                                        
                                        
                                            31.4.7. Disturbing a Reference Clock (a cable pull)
                                        
                                        
                                    
                                
                            16.4. Chroma Key Replacement
Color plane replacement only occurs if the value is set by the control register. You must specify the upper and lower bounds for pixel matching.
  
  If you turn off each plane comparison, it is equivalent to using a constant alpha specified by the matched alpha register as all pixels match. If a pixel falls in the specified range of all color planes, the IP applies the matched alpha to the most significant plane and it implements any enabled replacement values. The figure shows each red, green and blue planes fall within their respective ranges. The IP applies the matched alpha value (550) and replaces the red value with the specified replacement value (1023).
| Setting | Value | 
|---|---|
| Red range | 0 to 200 | 
| Blue range | 0 to 200 | 
| Green range | 550 to 1023 | 
| Matched alpha | 550 | 
| Unmatched alpha | 1023 | 
| Red replace | 1023 | 
| Green replace | Off | 
| Blue replace | Off | 
   Figure 39. Chroma Key Replacement