Re: Evaluating colour compression


	Cow Forums : Apple Shake VIEW POSTS • ADD A NEW POST • SEARCH • CHANGE FORUM

Respond to this post • Return to posts index • Read entire thread

Re: Evaluating colour compression
by Andrew Shanks on Jan 13, 2009 at 10:31:26 am

...not that this will give you any stats, but its easy enough to tell if its not 4:4:4, if you have change to YUV and compare the YUV (now RGB) channels, if you get any form of blockiness on the UV (GB) channels compared to the Y (R) then its not 4:4:4, ...4:2:2 will have smaller blockiness compared to 4:1:1, ...you can then do a channel blur to help soften these compression blocks before keying.

Goodluck,

andrew

Respond to this post • Return to posts index • Read entire thread

Current Message Thread:

Evaluating colour compression by Phillip Gibb on Jan 9, 2009 at 7:03:33 pm
- Re: Evaluating colour compression by david Coiffier on Jan 9, 2009 at 10:46:06 pm
  - Re: Evaluating colour compression by Phillip Gibb on Jan 10, 2009 at 5:53:45 am
    - Re: Evaluating colour compression by Arnie Schlissel on Jan 12, 2009 at 6:07:46 pm
- Re: Evaluating colour compression by david coiffier on Jan 12, 2009 at 6:26:25 pm
- Re: Evaluating colour compression by Andrew Shanks on Jan 13, 2009 at 10:31:26 am

Related Tags:
Compression

Note: If you are a registered user please click here to login before posting.

Your post will not be accepted if your name and email address are not registered in our database. Click here if you do not have an account.

Name

E-Mail Address

Subject

E-Mail me when someone responds

Just This Message

Entire Thread

None

Message:

Note: The following are HTML characters and may cause parts of your post to disappear if not used correctly: < > &
To include any portion of the post in your response, highlight the desired text and hit the "Q" key. Read more...

Add your message signature

Note: By clicking "Post Direct" button above, you are agreeing to the Creative Cow's Code of Conduct.