One potential objection to achieving optimal video quality is the limited calibration options available in standard video processors. However, Lumagen Radiance processors offer advanced calibration features that address this concern. With several models available, including the Lumagen Radiance XD, XE, XS, Mini 3D, 20xx series, and 21xx series, these processors provide users with a range of options for calibration. This includes grayscale calibration with 11 or 21 point controls, calibration of standard CMS primary and secondary color points, and calibration of a 3D cube lookup table (LUT) for SMPTE video level signals. It is important to note that the processors are not suitable for creating a 3D LUT for full range/PC levels. To facilitate the calibration process, Calman offers recommended workflows specifically designed for Lumagen Radiance calibration. These workflows include options for grayscale RGB balance and 3D LUT calibration, as well as standard CMS calibration. Firmware updates may be required for certain calibration features, and the Radiance processors can be easily connected to a Calman computer using either a USB cable or a DB-9 female to DB-9 female null-modem RS-232 cable. To ensure reliable device control, the use of FTDI USB to Serial converters is recommended. This article aims to explore the advanced calibration options provided by Lumagen Radiance processors and their potential to enhance video quality.
Key Takeaways
- Lumagen Radiance processors offer various models for different needs, including the XD, XE, XS, Mini 3D, 20xx series, and 21xx series.
- Calibration controls for Lumagen Radiance processors include grayscale calibration, standard CMS calibration, and a 3D LUT calibration for SMPTE video level signals.
- Calman recommends workflows such as the Color Cube or Calman Studio workflow for grayscale and 3D LUT calibration, and the HT Advanced or SI Advanced workflow for grayscale and standard CMS calibration.
- To perform 3D LUT calibration, a firmware version of 091612 or later is required, while grayscale and standard CMS calibration can be done with any recent firmware version.
Lumagen Radiance Models
There are several models of the Lumagen Radiance processor, including the XD, XE, XS, Mini 3D, 20xx series, and 21xx series, each offering different features and capabilities for advanced calibration of video quality. The Lumagen Radiance XD is a popular model known for its high-quality video processing, while the XE and XS models provide additional calibration controls for precise grayscale and color management. The Mini 3D model is a compact version designed for small-scale installations. The 20xx series offers enhanced connectivity options and improved processing power, while the 21xx series introduces advanced features like support for HDR and Dolby Vision. These models provide professionals with the tools they need to achieve optimal video quality and deliver an immersive viewing experience.
Calibration Controls
To achieve precise adjustments for color accuracy and image optimization, the Lumagen Radiance processors offer various calibration controls. These include grayscale calibration with 11 or 21 point controls, allowing for fine-tuning of RGB balance. The processors also allow for calibration of standard CMS primary and secondary color points, ensuring accurate reproduction of colors. Additionally, the Radiance processors have the capability to create a 3D cube lookup table (LUT) for SMPTE video level signals, further enhancing the image quality. However, it should be noted that the Radiance processors are not suitable for creating a 3D LUT for full range/PC levels. These calibration controls provide advanced options for professionals and enthusiasts seeking optimal video quality and color accuracy in their displays.
Recommended Workflows
One recommended workflow for achieving precise adjustments and color accuracy with the Lumagen Radiance processors is the Color Cube or Calman Studio workflow, which allows for grayscale RGB balance and 3D LUT calibration. This workflow offers the following advantages:
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Comprehensive Calibration: The Color Cube or Calman Studio workflow provides a comprehensive approach to calibration by enabling adjustments to grayscale RGB balance and implementing a 3D LUT calibration. This ensures precise color accuracy and optimal video quality.
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Grayscale RGB Balance: The workflow allows for fine-tuning of the grayscale RGB balance, which is crucial for achieving accurate and neutral shades of gray. This level of control ensures that the image displayed is free from color casts and accurately represents the intended content.
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3D LUT Calibration: The workflow also includes the calibration of a 3D cube lookup table (LUT) for SMPTE video level signals. This advanced calibration technique improves color accuracy and provides a more precise mapping of colors, resulting in a highly detailed and lifelike image.
By following the Color Cube or Calman Studio workflow, users can unlock the full potential of their Lumagen Radiance processors, achieving unparalleled image quality and an immersive viewing experience.
Connection and Setup
The connection and setup of the Lumagen Radiance processors involve establishing a control connection between the processor and the Calman computer using the appropriate cable, such as a USB cable or a DB-9 female to DB-9 female null-modem RS-232 cable, and ensuring the correct firmware version is installed for the desired calibration. For the 21xx series, a USB cable is recommended, while older models may require a serial cable. It is recommended to use a USB to Serial adapter with a data buffer, such as the FTDI converter, for reliable Calman device control. The Radiance RS-232 Echo must be turned on in the menu settings. Additionally, it is important to download the FTDI device driver and Calman device driver pack for compatibility.