Secure, calibrated, full latitude grading in 2K on the new iPad.

Seamlessly integrated with Colorfront On-Set Dailies, On-Set Color is an iPad grading app that supports communication of cinematographic intent between DoP and the dailies colorist.


Having access to the full latitude 2K 10bit logarithmic DPX images on the new iPad, with the calibration applied on the device allows for a proper grading pipeline to be implemented on the iPad.

See the workflow video.

OSCQuickStartGuide.pdf [845 KB]

Images are watermarked and encrypted and can be synced through secure FTP. Color grading is compatible with On-Set Dailies and can be sent back along with any text notes to the dailies facility and applied for the transfer.

On-Set Color works both on iPad 2 and the original iPad and is available for all On-Set Dailies users immediately.

Advantages of Colorfront On-Set Color

  • Full integration with On-Set Dailies
  • Works with 2K uncompressed 10 bit log DPX files
  • Full latitude high dynamic source material
  • 3DLUT calibration applied on the iPad
  • Automatic sync stills and color grading metadata from OSD
  • Secure FTP transfer, 128-bit AES encrypted images and watermarking for security
  • View original, colorist or new grade
  • Send back CDL or primary grade settings to OSD
  • Multi-Touch UI, gestural interface
  • Aspect ratio overlay and blanking
  • Brightness, contrast, color balance, saturation control
  • Color grade shadow, midtones and highlights separately
  • Review and share notes and comments

For additional security details on the iPad in general, please review:
iPad in Business Security Overview

On-Set Color™ and On-Set Dailies™ are trademarks of Colorfront.

Advanced color volume remapping tools using the Human Perceptual Model for multiple display mastering maintaining the original creative intent

Colorfront Engine is a state-of-the-art parametric color processing pipeline mapping various input formats, including camera original (scene-referred) and graded (display-referred) images, to a wide range of SDR and HDR output formats at user definable brightness levels and gamuts while maintaining the creative intent.

By utilizing the knowledge of how the human visual system works, the perceptual model, processing source content to fit a given display’s brightness and surround can be applied while maintaining the original creative intent with little to no trimming.

Processing blocks in the Colorfront Engine pipeline

Colorfront Engine SDK

The modular color processing functions underneath all of the above implementations are available in a software development-kit (SDK) for partners to implement. By applying a relevant subset of functions, various solutions can be designed for specific color processing problems.

Colorfront Engine is now available as a simple to integrate, lightweight C++ SDK on Windows, OSX, iOS and Linux. Depending on the intended usecase the host application may expose a limited set of parameters, or the full range of controls. The highly optimized 32-bit floating point processing engine to minimize processing cycles can be easily multi-threaded.

Colorfront Engine SDK brochure | 2.1 MB

Preserving the creative intent

What do we mean about preserving the creative intent? The creation of images starts with capturing some source footage. The source footage then goes through various transforms and is finally put up on what we call a reference master display. This is a very important concept because this is the hero image. This image is exactly what we want all deliveries to look like, no matter whether they are viewed in a brighter or darker environment, or whether the peak brightness matches the current cinema level, or if it is a much brighter HDR experience at 1000 nits or above. The looks need to be maintained across all of these without having to adjust each one of them. Looking at a mastering display and creating a reference image can be done in multiple stages of the workflow, from starting on-set to all of the way through post-production. In our industry, we want the “look” to be accurately maintained and to travel with the project from end to end.

There are many requirements and challenges of applying a color processing pipeline when mastering for multiple displays and various surround brightness levels. The following questions should be carefully considered when choosing a color processing pipeline for a mastering/delivery workflow:

  • Does it support the common master workflow?
  • Does it handle both SDR to HDR, and HDR to SDR?
  • Does it support camera original and graded sources?
  • Is it based on LUTs created with creative grading tools?
  • Do they break with images pushing the color boundaries?
  • Does it support various input and output nit levels?
  • Does it support different output color spaces with gamut constraints?
  • Does it support various ambient surround conditions?
  • Will SDR look the same as HDR? Is the look of the image maintained?

Colorfront Engine wins HPA Engineering Excellence Award

Colorfront has been recognized for the Colorfront Engine, a state-of-the art, automatically managed, ACES-compliant color pipeline which brings plug and play simplicity to today’s complex production requirements, Colorfront Engine ensures image integrity from on-set to the finished product. Colorfront Engine’s Master Look uses a partial subtractive color model and is well-suited for VFX compositing due to its neutral gray scale & offers a perceptually balanced wide range color palette with particular emphasis on good skin tones in varying conditions.

Judging criteria for the technology include the following: uniqueness, significant contribution to the industry at this time, excellence, outstanding implementation, design and utility, offers a path to continued industry progress, represents an achievement that allows for increased efficiency or creativity, and streamlines or enhances current processes.
2017 HPA Engineering Excellence Awards

Colorfront Engine Whitepaper


[2.6MB]

[new] Colorfront Engine Whitepaper by Colorfront CTO Bill Feightner
Using the Human Perceptual Model for Multiple Display Mastering [2.6MB]

Maintaining a consistent, creative look across today’s rapidly growing field of new display technologies for television, cinema, and portable devices is an immsense challenge. This is especially true when considering the wide disparity in possible brightness, contrast, and viewing environments. The traditional show LUT based approach of a dedicated finish for each possible combination is not practical. Even if that approach were taken, maintaining creative consistency would be, at best, extremely difficult. Colorfront Engine is based on the extensive knowledge of how our eyes see light, and uses an internal processing color space where the perceived color and tonal relationships are preserved.

Convert between camera log and HDR/SDR

With a perceptually optimized color volume remapping technology, Colorfront Engine is designed to preserve the original creative intent when converting between numerous original camera and delivery formats, no matter what the color space, brightness level, or dynamic range is.

  • Mapping from various camera native log formats to multiple concurrent HDR / SDR outputs
  • SDR preview on HDR monitors allows instantaneous previewing of SDR / HDR on a single HDR display, without changing settings
  • HDR to SDR down conversions facilitating single master workflows
  • SDR to HDR up conversions allowing the integration of legacy SDR content into HDR workflows
  • Remapping between various HDR and SDR nit levels
  • Remapping between standard and wide color gamuts, including BT.709, BT.2020, P3 and ACES
  • Converting between various resolutions, including 8K, 4K, UHD, HD, SD

Adopting a human perceptual model to ensure that the creative intent is maintained is an effective and the only adequate method that can handle the wide range of gamuts and brightness levels while preserving a consistent look across all of the abundant number of display targets in today’s growing technological world.

The Colorfront Engine is an implementation of a perceptual color processing pipeline that meets the requirements listed above. This technology is currently available in different software and hardware products such as AJA’s FS-HDR and HDR Image Analyzer, as well as in all Colorfront dailies and mastering products. Colorfront’s state-of-the-art color processing Engine brings true plug-and-play simplicity, as well as a convenient and supreme solution to today’s complex multi-source, multi-deliverable production needs.


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