David Stump on Red

[Elcurado]

Just an example:

"I will post frames from all of the work, but I have just completed my
first series of tests on the Red camera. Shooting went very well, the
prototype was extraordinarily well behaved. I am very pleased with the
keys that I am pulling from the material, and I can't wait to see a
green screen comp on the big screen. The image from the sensor has a
pleasing look to it, not noisy, not grainy, not sharpened by any
sharpening kernel, and it color corrects easily, yielding very pleasing
and true colors."


Comments?

[jrv3034]

Awesome. Very very awesome.

[goldyprog]

Does anyone know what color grading system is being used here? Is it Red's proprietary grading?

I'll check cinematography.com as well.....

[Stephen Williams]

Hi,

You need to read David's notes with each set of frames.

Stephen

[USLatin]

do you have the direct link to his article? there is so much there, TBs of thanks

[Jarred Land]

Color Grading on these images where not done.. just a rough white balance on some of the images, and on most they are straight out of the prototype of RedCine at "flat line" settings.

[Elcurado]

Sorry Jarred,
are the images available? Where?

[acoreasc]

images will be posted over the next few days

[Jim Arthurs]

Hopefully all the files can be mirrored, if Jim J. has permission... I've got a feeling that those folks are going to get their bandwidth SMACKED when the RED frame grabs go on-line...

[Jarred Land]

you guys are good at taking care of mirroring issues :)

[mikkowilson]

Once they are publically posted (with a clear blessing from the owners) on DVXuser, I will once more host a mirror.

- Mikko

[im.thatoneguy]

It would be nice if someone compressed all the files into a single zip and Seeded a torrent.

That way we don't have to download a dozen files.

[Rob Lohman]

Even zip the individual files, that would save a ton of bandwidth

[mikkowilson]

Just someone know when are where they are up and I will mirror them, both individually and as a zip.

- Mikko

[Muttondraw]

Just someone know when are where they are up and I will mirror them, both individually and as a zip.

- Mikko

They are starting to go up now. Geoff has said that the pages will be changing constantly over the next few days.

Martin

[Stephen Williams]

Even zip the individual files, that would save a ton of bandwidth

Hi Rob,

But that is some form of compression right? Not ideal if you want to see what the camera is capable of.

Just my 2c

Stephen

[Chris Kenny]

Zip is lossless.

[Stephen Williams]

Zip is lossless.

Chris,

Completely 100% or just 99.99 curious not trying to be a pain!

Stephen

[Graeme_Nattress]

200% lossless :-) You don't loose anything with a zip!

Graeme

[Jarred Land]

this is odd.. someone else last week said the same thing, images cant be zipped because they loose quality. This is wrong..take Graemes word for it.

[Graeme_Nattress]

DOn't just take my word for it - do a before and after and diff the results.

Graeme

[Barry_Green]

There are two types of compression systems in the world, lossy and lossless. Lossy = most video or photo compression systems, such as MPEG or JPG, where the loss in image detail isn't vital. Then there's lossless, typically used for data where the data must be absolutely 100% perfectly restored when uncompressed. LZW and Huffman are examples of lossless compression systems; ZIP employs lossless compression so what you unzip will be 100% identical to what you ZIPped.

[jbeale]

Zip is and always has been 100% lossless. Gzip and bzip2 are also lossless. These programs normally don't gain you much for images because there is not much precisely regular structure at the pixel level, as there is with source code or natural language text for example. But even if the compression isn't much it's still handy just to have an image collection archived into a single file.

I tried ZIP on the RGB_f11 image posted at
http://www.cinematography.net/red-exposure.html and it wasn't a huge space savings:
original tiff: 75,861,202 bytes
ZIP version: 69,523,067 bytes

[Chris Kenny]

Zip is and always has been 100% lossless. Gzip and bzip2 are also lossless. These programs normally don't gain you much for images because there is not much precisely regular structure at the pixel level, as there is with source code or natural language text for example.

Well, for line art, etc. where there are large areas of single colors, these algorithms do very well, often achieving better compression than they get for natural language text (which is usually a bit over 2:1). For photos, where even areas that are visibly a single color are actually broken up by noise at the pixel level, yeah, they tend not to do so well. PNG, a lossless algorithm actually optimized for images, can cut these files down to ~50 MB.

[DorkmanScott]

DOn't just take my word for it - do a before and after and diff the results.

Graeme
On a separate note, I'm looking forward to doing this with a RAW vs. REDCODE RAW image. :)

[Jannard]

I'll be stunned if you feel the need to shoot RAW instead of REDCODE after making the comparisons.

Jim

[ThomSteinhoff]

I'll be stunned if you feel the need to shoot RAW instead of REDCODE after making the comparisons.

Jim

Music to my ears!

After struggling over another thread talking about what sort of Raid we'll have to set up to shoot raw -- I can't even imagine shooting a feature without a Peter Jackson sized budget and even thinking about shooting RAW.

Based on what I've seen and what you've just said--I think even Peter Jackson will shoot Redcode!

Thom

[visceralpsyche]

I tried ZIP on the RGB_f11 image posted at
http://www.cinematography.net/red-exposure.html and it wasn't a huge space savings:
original tiff: 75,861,202 bytes
ZIP version: 69,523,067 bytes Purely for interest I tried 7zip (http://www.7-zip.org/) Ultra compression on that same file and got 58.0MB (used 128MB dictionary, LZMA, word size 273). Not all lossless compression schemes are created equal - Graeme can attest to that :laugh:

[Rob Lohman]

It would be around 55 MB just by storing it as a 12-bit TIFF instead of 16-bit. A lot of programs are not able to work with such files though (CS2 for example)