HDRy (Ypsilon) option...

[Sanjin Jukic]

HDRy™(Ypsilon) option...

This is not to compete with HDRx™™™™™™™™™™™™.

It's about to add one more HDR option using R3D (REDCODE RAW) files.

What is HDRy™(Ypsilon)?

HDRy™(Ypsilon) is an idea from RED User Sanjin Jukic that giving user of RED1 M, RED1 MX, Epic and Scarlet
an option for extended dynamic range when is possible to make it and extremely depends on a user decision
to do that step in the postproduction.

How does HDRy™(Ypsilon) work?

Very easy and simple:

1. Export two TIFF images from each frame using the latest RCX build (the current is RCX B356).

2. The first image has a normal exposure and other adjustments at it was shot or you can do also your own adjustment in RCX.

3. The second image has many RCX adjustments using Curves, FLUT, Shadows, Contrast, Saturation, etc,..all by user.

4. Output each image in separate folders.

5. Combine those to images using any HDR enhancing tool available to you (I did it with PhotoMatix Pro using Exposure Fusion to adjust Highlights and Shadows).

6. Save these files as a 16bit TIFFs and import them as an image sequence at a movie editor software of your choice (FCP, Avid, Vegas, etc,…).


Pros:

1. There is no any problem with motion because your shutter always stays as it was recorded (1/48, 1/50 or whatever shutter speed of your choice you were recording…)

2. There is no need to double your file during recording in Epic and Scarlet.

3. Also you can with HDRy workflow HDR enhance your footage from RED1 M or RED1 MX sensor.

4. It's working RIGHT NOW and TODAY with your M or MX (better) R3D files.

Cons:

1. It is very slow process to do step by step right now but can be much accelerated if somebody could write an Automator script for Mac OS X,
make plug in or even to write a standalone app to work with HDR enhancing of R3D files in this way during postproduction.


Normal image: Shot handheld on RED1 MX with Leica-M Apo-Summicron 75mm f/2.0 @ wide open f/2.0, 1/50, ISO 1600.


Screen grab from RCX B356 for Normal image...


RCX B356 adjusted image: Shot handheld on RED1 MX with Leica-M Apo-Summicron 75mm f/2.0 @ wide open f/2.0, 1/50.


Screen grab from RCX B356 for RCX adjusted image...


HDRy™(Ypsilon) enhanced image with Exposure Fusion of two images: Shot handheld on RED1 MX with Leica-M Apo-Summicron 75mm f/2.0 @ wide open f/2.0, 1/50.


Screen grab from PhotoMatix Pro HDR with Exposure Fusion enhanced image...

Download 1 second of ProRes 1920x823 wide screen footage>>>

Download 1 second of H264 1920x823 wide screen footage>>>

THE BEST TO WATCH IS TO PLAY ANY THESE FILES IN LOOP!!!!

[paulherrin]

i'm not sure you have a patent on that. thanks for sharing, though. myself and others have made similar suggestions. sometimes you can compress it down into one "flat" looking file as well... sometimes.

you can also use photoshop, and make really simple automations/scripts in there to ingest a lot of frames.

this is basically just using the latitude of the r3d - the same rules apply for how far you can push it based on your originally captured material. so... expose it correctly, for starters.

also, sanjin... i really appreciate your examples, but i'm not sure this is the best one to demonstrate the technique...

thank you kindly.

[DCC Erickson]

I've messed around with this inside the NLE, just blowing out one track of video and combining it with a duplicate, unadjusted track. My AVCHD dynamic range pretty much blows, but you can still get some interesting looks this way. It seems like you should be able to do your edit and then apply an HDR effect in the NLE this way for RAW, but then my workflow is: insert SD card, drag folders.

[Oliver Koeppel]

Hey Sanjin,
has been said many times - you could do it like that, but it´s not neccessary. You could get the same result by tweaking the curves. You will need some practise, but it´s doable
But anyway, thanks for your work...
Olli

[Sanjin Jukic]

i'm not sure you have a patent on that. thanks for sharing, though. myself and others have made similar suggestions. sometimes you can compress it down into one "flat" looking file as well... sometimes.

you can also use photoshop, and make really simple automations/scripts in there to ingest a lot of frames.

this is basically just using the latitude of the r3d - the same rules apply for how far you can push it based on your originally captured material. so... expose it correctly, for starters.

also, sanjin... i really appreciate your examples, but i'm not sure this is the best one to demonstrate the technique...

thank you kindly.

Paul,

yes and something in that way...

i'm not sure you have a patent on that.

I'm giving away this "patent" for free to the community of RED Users and also other RAW recording movie cameras...

[Sanjin Jukic]

You could get the same result by tweaking the curves.
Olli

It's a bit more deeper to dig in DR that you can do with adjusting the curves.

Also it's about a fusion of two images with different DR of choice in a way to get the third one as a result of much better DR than those two involved in that process...

[paulherrin]

it does allow you to have twice as much data (2 files) without compressing it down to begin with, and you can tone-map it accordingly. that's if you're not working with the r3d for grading.

[Zach Gray]

Here we go again.

It's just a overly complicated approach to creating a careful exposure curve.

HDR results from a single RED RAW clip in 2 steps:

1. Open AE.
2. Effect -> Color Correction -> Shadow/Highlight

http://www.screencast.com/t/xuMIuj9xCb

[Sanjin Jukic]

Here we go again.

It's just a overly complicated approach to creating a careful exposure curve.

Zach,

but you are so naïve or even a blind one...

100 or 1000 times to repeat that it is not the same.

On a bigger picture you can see all that better.

That means on 4.5K you see all those HDRy™(Ypsilon) enhancements.

In a web container you don't see so much and is just waste time to explain again and convince non believers anyway...

With a big wish and great hope to meet smart and honest people this year here...

[Colin Hubick]

neat idea I've seen before, but a bit unpractical to do in a post production environment. Not to mention you would very likely get various changes from frame to frame due to loading the frames independently.