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14/01/2009

Digital Praxis 3D LUT Builder Provides Calibration For All

Specialist digital film consultancy, Digital Praxis, also provides a range of software tools for Digital Cinematography and Digital Intermediate operations, with its Sony CineAlta Gamma Curves having become something of an industry standard for those shooting digitally.
The latest addition to the tools provided by Digital Praxis is a 3UD LUT Builder aimed at simplifying the building of 3D Cube LUTs for use in calibrated image viewing via digital monitoring, including crt and LCD monitors and digital projection.
The 3D LUT Builder has proven very popular and is in use with many post-production facilities around the world, as well as being used for calibration of on-set viewing for digital cinematography projects.
The all new Digital Praxis 3D LUT Builder can generate 3D LUT's for many post-production systems including those from, but not limited to:
  • Quantel
  • Autodesk
  • Thomson
  • Panavision
  • Pandora
  • Assimilate
  • da Vinci
  • Chrome Imaging
  • DVS
  • Iridas
  • Shake
  • Nucoda/Digital Vision
  • Cine-tal
The LUT Builder incorporates the ability to have a user selected image inserted into the reference frame for LUT generation and, more importantly, can build 10bit, 12bit and 16bit 3D LUTs, from images of any original bit depth.
The 3D LUT Builder works by generating a reference image that can be colour corrected as required to match an accurate reference image, usually a film print image, making use of a colourist's natural ability to match two images. The software then uses this modified reference image to build a 3D Cube containing the changes made.
This approach has made the Cube Builder popular with facilities keen to add that final 'tweak' to LUT's generated via automated LUT systems.
As was said by one post-production DI client: "Our colourist can see the difference between the final film print and the LUT generated by our automated LUT system and the Digital Praxis 3D LUT Builder allows him to fix the error to make the LUT 100% accurate."
Another major use of the Digital Praxis 3D LUT Builder, apart from building LUT's from scratch, is that it can 'RIP' any LUT from any other LUT system, including encoded and encrypted LUTs... This means calibration LUTs built for a specific system can be ripped and used in any other system to provide environment wide calibration for multiple systems throughout a post-production environment.
Users of the Digital Praxis 3D LUT Builder range from major studios and film labs, including Warner Bros. Motion Picture Imaging, LA, USA and Gemini Film Lab, Chennai, India, through to small boutique DI facilities, including Gradient Effects, Marina del Ray, CA, USA and Lighthouse Production and Design, Malayasia.
Further information is available at: www.digitalpraxis.net.
(KMcA/BMcC)
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