RED’s New Image Processing – IPP2 – With Demo Images
Update: I also test the new demosiacing algorithm in this new article.
RED announced their new image pipeline dubbed IPP2 last December on the Recon forum. IPP2 will involve changes to the firmware, monitoring options, and software. Owners of Helium will benefit from shooting both HDR and SDR simultaneously, better color rendition when monitoring, and better shadow detail. More exciting for someone like me who hasn’t upgraded to Helium, is the new color science that will be implemented into RedCineX.
The new color science option is dubbed REDWideGamutRGB. From the whitepaper, it is described as: “a camera colorspace designed to encompass all colors a RED camera can generate without clipping. Essentially REDWideGamut is a standardized CameraRGB color space.”
The accompanying gamma curve is called LOG3G10 and described as: “a log curve designed to encode camera data in REDWideGamutRGB color space for subsequent grading and transformation to HDR, SDR or other log encodings.”
I took a clip (Dragon Sensor). For the baseline clip I used what you would: DragonColor & RedLogFilm. For the IPP2 clip I used the IPP2 settings. There is a clear difference in the flame with the transition to highlights, and a look that appears more natural.
IPP1 Has some detail in the flame, but the color seems unnatural and it goes from detail to clipped where you can distinctly see the lack of transition. IPP2 Looks more natural with a smooth roll into clipping, and what seems like better color rendition. The Top left of the flame also has better detail within the wisps.
You can see the areas where the image was clipped. But look at the difference in rolloff. There are more steep unnatural transitions in IPP1 as the saturation is pushed extra hard.
RED provided some examples, these being the most obvious:
I may mess about a bit more with some old footage where I remember not being satisfied with highlight rolloff or color rendition problems. If I do I’ll post it up.