wrong colours in export from FCP

[David Roth weiss]

We have no idea why you chose to export to RGB and 8-bit YUV other than as an experiment. So, rather than stating what you did and asking why that didn’t work, it would be better if you gave us detailed information about your project and explained what it is that you’re actually trying to accomplish. For example, if you simply trying to export the best possible copy of your work, then ask how to do that.

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY ™

A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.

[Rafael Amador]

Hi Anette,
if you are editing video (YUV) and you are exporting to 8b Unc (YUV) you should render your footage in YUV.
If you render in RGB you are converting your YUV footage to RGB and back to YUV.
Think that this is a destructive process that you should avoid as long as possible.
Rafael

http://www.nagavideo.com

[Anette Ruud andersen]

Thank you for the imput!
I figured it out and got a nice export after all. But it would like to hear other peoples experience with this.
I am just trying to understand why the colours vary so much when I do different exports in fcp. For example if I export as a quicktime with a xdcam ex 720p25 comressor I get the “wrong” colours, as with h.264 and uncompressed 10-bit. But with mpeg-4 or motion jpeg A I get an excelent result colourwise. The film has to be processed in either rgb or yuv anyway, right? I really want to figure this out 🙂

[Anette Ruud andersen]

Right, thank you for the answer!
So, why is there an option to use RGB?

[Dennis Couzin]

Anette,
As I read your original post, the first image is how FCP displayed the original material and the second image is how some player — you don’t say which — displayed one of your two sample uncompressed exports — you don’t say which. The implication is that there wasn’t noticeable difference between the two exports (otherwise you should you have shown three images). So RGB versus YUV rendering is not the issue here.

It only safe to compare the colors of videos which are in the same codec and displayed in the same player. An example of how misleading comparisons occur when codecs are different is discussed in: https://forums.creativecow.net/readpost/8/1025922

[Anette Ruud andersen]

The first image is a scr.grab from FTP where the material is colour-corrected. The other image is a scr.grab from apples osx leopard video quickview. My question is why my material are different inside and outside FCP. Shouldnt what I see be what I get if I follow the parameters?
I think the difference in the two images are clear. When I set my colours to ex. blue I don’t want to end up with purple.
Thank you for the thread to the other discussion!

[David Roth weiss]

[Anette Ruud Andersen] “I figured it out and got a nice export after all. But it would like to hear other peoples experience with this.
I am just trying to understand why the colours vary so much when I do different exports in fcp. “

It’s because FCP is very powerful, and very user controllable, unlike some of the other hardware NLEs which do everything for you. FCP requires that you either know precisely what you’re doing, or that you will ask someone who does. It’s like a craps table in Las Vegas, there are many choices, but only a few good ones, and it requires knowledge and experience to know which ones are right for your particular codec and workflow.

I asked you very specific questions about your original material and your objectives, which you still have not answered, so I cannot help you to fully understand what choices work with your material and why. This is a business of precision, and if you want precise answers you need to give precise information.

So, you can continue to use the hit and miss method and guess why one choice works and another doesn’t, or you can choose to work with those of us who do know the answers, and help us to help you. What’s your choice?

David

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY ™

A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.

[Anette Ruud andersen]

I am exporting a 4 minute promofilm for use on a webpage. I don’t have any problems with exporting. I get a good quality in material but I want the best colours for my film.

When I am doing simple colour-correction in fcp you would think that when I export it I would get the colours I created. But somehow, the difference, as in shown pictures show that blue turns to purple.

How to make sure what I see is what I get?

I have done research and found great ways to get a good looking webfilm qualitywise, and I like to explore all the options because Id like to know the core of the program.

[David Roth weiss]

[Anette Ruud Andersen] “I am exporting a 4 minute promofilm for use on a webpage”

Anette,

I don’t think you understand that I’m trying to help you, but you’re not speaking in precise terms we use in video. I need you to look at the original clips you’re editing in the FCP browser and give me the precise information there.

Below is an example that gives me all kinds of information about the material I’ve got in my project. The info in the Compressor column is absolutely key, and Frame Size is also very important. You need to scroll to the right in the browser to find this info, and that’s the type of precise information that professionals here require in order to help you.

Do you understand, that without that info we are simply guessing how to help you?

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY ™

A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.

[Anette Ruud andersen]

Here is my material: 1280×720 – 25p – compressor:(default) xdcam ex 720p25. What is the best setting for colours for my material?