Typically, the RAW outputs from these cameras constitute a single output signal which is subsequently debayered to structure the three separate RGB video components. This process entails some degree of reconstruction errors depending upon the sophistication of the debayering algorithm. The EOS C500 and C300 cameras also employ the classic Bayer CFA – but we deploy an alternative strategy to the construction of the separate HD / 2K RGB frames as described in Reference [1].
In the postproduction domain Canon-Log can be transformed back to the linear domain to facilitate such digital processes as conversions to other transfer characteristics (such as Cineon) color matrix transformations, secondary color correction, luminance tonal adjustments, image compositing etc. This transformation enables wide dynamic range digital intermediate processes to be performed in linear light space with minimum quantization errors .
