Just about all of today's digital cameras are capable of recording video. Most are also capable of taking very good quality HD video. But a similar problem arises for most people in that it's not easy to view those video clips. Many would like to combine them to single playable videos, but don't know how. Similarly many others would like to create their own YouTube videos, but also don't fully understand where to start. This site's tutorials are intended to help those people. ONLY FREE SOFTWARE are used in these tutorials. That way, the average person can get started and try what they've learned immediately.

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TRANSLATOR TRADUCTOR अनुवादक TRADUCTEUR TAGASALIN ÜBERSETZER

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Sunday, October 28, 2012

Color Correction, Brightness, Contrast, and Gamma


Newer cameras have excellent automatic color correction capability.  But sometimes it's nice to be able to provide some manual adjustment of your videos to get that "just right" look.  Often a video may be too dark and needs to be brightened/lightened.  This tutorial covers the basics of color correction, to include Brightness, Contrast, Gamma, Saturation, and Hue.  As always, freeware video editors are utilized exclusively to demonstrate these type corrections.

Brightness and Contrast
The most common correction that may be needed is Brightness, and with that Contrast also.   When you brighten a dark video, you may lose some definition causing the video to appear noisy or flushed.  This can be corrected by also applying a little Contrast to bring out some definition.

Gamma, Saturation, and Hue
A simple(but not entirely correct) way to explain Gamma correction is to think of it as an automatic balancing of both Brightness and Contrast.  Instead of individually adjusting Brightness and Contrast, I almost always use Gamma exclusively as it enables quick and simultaneous adjustment of brightness and contrast.  But some color may be lost in the process.  This is easily corrected by applying a little Saturation after Gamma to brighten up the colors.  Hue provides a special adjustment if the colors of your original video look abnormal.  A gently adjustment of Hue should enable you to easily bring back natural looking colors to the video. 

And here is a sample video demonstrating the application of color correction. The freeware program FileLab Free Video Editor (download it here) is used as it enables easy adjustment of each of these corrections.

Color Correction Tutorial: Brightness, Contrast, & Gamma
This video is in HD.  Click "Full Screen" in lower right corner.

11 comments:

  1. Please comment on your experience or needs for video editing. I use such input for future blog posts. Also use the comments to contact me, as I read each and every comment. If I don't reply, that means I don't know the answer to your particular question, and hopefully one of the other readers can answer it.

    ReplyDelete
  2. Color correction by using color gels, or filters, is a process used in stage lighting, photography, television etc......nice video
    colour correction

    ReplyDelete
  3. This comment has been removed by a blog administrator.

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  4. FileLab is definitely free. I think that you may have accidentally clicked on a Google Adsense advertisement and downloaded a pay program. Sometimes they advertise on this site (I have no control what Google Adsense displays). What is the name of the program that you are using? If anything other than FileLab, that's what you did. The link for FileLab is above in the article, highlighted in bright yellow as "download it here".

    ReplyDelete
  5. Color correction by using color gels, or filters, is a process used in stage lighting, photography etc

    ReplyDelete
  6. Excellent post about color correction in video production. It's so important to the finished product, never underestimate the power of adding brightness, contrast and saturation to your video work.

    - J from Video Production in Rhode Island

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  7. Any idea how to brighten a part of a video? That is, if a corner is too dark, but I don't want to lighten the whole video because that would make the rest too bright?

    ReplyDelete
    Replies
    1. Rake, try adjusting Gamma instead of brightness. Then fine-tune with slight adjustment of Contrast.

      Delete
  8. Hello, i downloaded the plugin needed to use this tool, but eventhough i installed it and activated the plugin in my chrome browser, it keeps saying "No FileLab Plugin Installed" when i reboot the page of the tool... what can i do?

    ReplyDelete
  9. your blog is really good. useful content. Thanks for posting.I have similar page Kindly visit my page also. Outsource Images to India|Real Estate Photo Editing Service

    ReplyDelete

Please comment on your experience or needs for video editing. I use such input for future blog posts. Also use the comments to contact me, as I read each and every comment. If I don't reply, that means I don't know the answer to your particular question, and hopefully one of the other readers can answer it.