LinuxQuestions.org
Welcome to the most active Linux Forum on the web.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Software
User Name
Password
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.

Notices


Reply
  Search this Thread
Old 08-11-2009, 09:19 PM   #1
BrianK
Senior Member
 
Registered: Mar 2002
Location: Los Angeles, CA
Distribution: Debian, Ubuntu
Posts: 1,334

Rep: Reputation: 51
mp4's made with mencoder have incorrect gamma,brightness,contrast. What vals fix?


I'm creating x264 mp4s using mencoder. While they look pretty clean and are of a very manageable size on disk, they always come out considerably darker than the source material (my source is a sequence of images).

I've been experimenting with various gamma, brightness, and contrast options. I've gotten pretty close, but wonder if this is a known issue with known correction values or maybe if someone else has experimented and found numbers that work.

So far, the closes I've gotten is:

gamma 0.9
contrast 0.9
brightness 0.05

.. but it's still just a bit off.

anyone know the actual correct (or closest to correct) values?

Thanks
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
No more brightness/contrast control for me Sunny Rabbiera Mandriva 1 01-12-2008 12:09 AM
Adjust brightnees gamma an contrast 100sTressZeN Linux - Hardware 4 09-03-2007 10:45 PM
How to adjust contrast/brightness JussiKp Linux - Newbie 7 08-05-2006 04:40 AM
Brightness and contrast settings Joe Belmaati Linux - Newbie 5 11-16-2004 12:39 AM
Changing brightness,contrast,gamma and opeming RPM files HellBound Linux - General 10 08-07-2002 10:21 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Software

All times are GMT -5. The time now is 01:58 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration