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Adjusting brightness and contrast

From: PowerPoint 2010: Audio and Video in Depth

Video: Adjusting brightness and contrast

If your video is under or overexposed, you can adjust the brightness and contrast right inside PowerPoint without having to open up third-party video editing software. It's easy. Here's how. On Slide 4, I have our 90- second TV spot and it's overexposed. You can see how overly bright it is. I'd like to darken this clip a little. Click on the media clip and then under the Video Tools tab on the Format Ribbon, look over on the far left side in the Adjust group and there's a button with the sun on it that says Corrections.

Adjusting brightness and contrast

If your video is under or overexposed, you can adjust the brightness and contrast right inside PowerPoint without having to open up third-party video editing software. It's easy. Here's how. On Slide 4, I have our 90- second TV spot and it's overexposed. You can see how overly bright it is. I'd like to darken this clip a little. Click on the media clip and then under the Video Tools tab on the Format Ribbon, look over on the far left side in the Adjust group and there's a button with the sun on it that says Corrections.

Click on it and a grid of 25 squares will open. The current levels are in the very center with the box around them. Brightness: 0% (Normal) and Contrast: 0% (Normal). As you hold your cursor over the other boxes, you can see your media clip get brighter and darker. Brightness is the amount of light or exposure in the media clip. It goes from left to right, low to high. Low brightness is almost black. High brightness is almost white.

Contrast is the difference between the lightest and darkest parts of the picture. Low contrast is at the top and high contrast is at the bottom. With high contrast, whites are bright and blacks are dark. With low contrast, they meet in the middle and become much more gray. It's always worth taking to look at these corrections to see if they'll make a difference in the appearance of your video. If you find the one you like, click on it and your video will be corrected to that level of brightness and contrast. I'm going to choose Brightness: -20% and Contrast: 0%.

Now, if these presets aren't perfect, you can also fine-tune them. Start by choosing one that's close like we just did. Then go back up to the Corrections button and choose the Option at the very bottom, Video Corrections Options. A dialog box will open and on the left-hand side you can see that we're in the Video section. If your dialog box is covering your video clip, move it off to the side. The second presets button down under Brightness and Contrast has the same presets we were just using. Below that, Brightness and Contrast both have sliders that you can drag back and forth, and spinners that you can use to move them up and down.

If you want, you can also type values into these boxes. If you don't like what you see, you could always click the Reset button to remove all of your adjustments to start over again, but I'd like the way this looks. So I'm going to go ahead and click Close at the bottom. Now, your media clip has been adjusted perfectly. The ability to perform color corrections on your media clips right inside PowerPoint is much easier than working in a video editing application.

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This video is part of

Image for PowerPoint 2010: Audio and Video in Depth
PowerPoint 2010: Audio and Video in Depth

83 video lessons · 9253 viewers

Alicia Katz Pollock
Author

 
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  1. 1m 43s
    1. Welcome
      54s
    2. Using the exercise files
      49s
  2. 20m 45s
    1. Using video and audio appropriately
      1m 58s
    2. Considering copyrights
      3m 57s
    3. Linking vs. embedding media
      8m 35s
    4. Working with video formats
      6m 15s
  3. 22m 4s
    1. Inserting an animated GIF from the clip art gallery
      4m 21s
    2. Inserting a video from a computer file
      3m 55s
    3. Inserting a clip as an external object
      3m 10s
    4. Inserting a video as a Windows Media Player control
      3m 45s
    5. Linking to a YouTube video
      5m 23s
    6. Inserting a video using an action button
      1m 30s
  4. 23m 23s
    1. Inserting a QuickTime video
      6m 3s
    2. Playing a Flash animation
      6m 0s
    3. Using ActiveX as a workaround
      5m 58s
    4. Inserting a web page
      5m 22s
  5. 34m 6s
    1. Trimming a video
      5m 54s
    2. Fading in and out
      4m 23s
    3. Cropping a video
      4m 6s
    4. Selecting a poster frame
      1m 53s
    5. Adjusting brightness and contrast
      2m 40s
    6. Recoloring a video
      2m 50s
    7. Adding video bookmarks
      3m 10s
    8. Synchronizing text captions with bookmarks
      9m 10s
  6. 10m 32s
    1. Resizing a video
      4m 34s
    2. Playing a video in a shape
      2m 2s
    3. Using a video as a slide background
      3m 56s
  7. 29m 3s
    1. Applying a preset video style
      2m 48s
    2. Designing a border
      3m 59s
    3. Adding shadows
      2m 52s
    4. Adding reflections
      2m 39s
    5. Adding glow effects
      2m 16s
    6. Adding soft edges
      1m 45s
    7. Applying 3D rotation
      3m 50s
    8. Applying bevels and 3D formatting
      6m 26s
    9. Using Format Painter
      2m 28s
  8. 22m 34s
    1. Setting the volume
      1m 13s
    2. Playing a clip automatically
      57s
    3. Play full screen
      1m 1s
    4. Hiding a video
      1m 16s
    5. Looping a video
      2m 50s
    6. Rewinding after playing
      1m 13s
    7. Delaying playback of a video
      2m 0s
    8. Showing and hiding media controls
      1m 1s
    9. Triggering a video by clicking a graphic
      5m 5s
    10. Triggering a video using animations
      2m 46s
    11. Playing a video across multiple slides
      3m 12s
  9. 13m 0s
    1. Troubleshooting videos that won't play
      3m 7s
    2. Improving playback performance
      3m 43s
    3. Optimizing Windows 7 settings
      6m 10s
  10. 13m 18s
    1. Working with audio file formats
      3m 7s
    2. Inserting a sound from the clip art gallery
      3m 15s
    3. Inserting audio from a computer file
      1m 56s
    4. Recording your own sounds
      3m 35s
    5. Playing audio in an external application
      1m 25s
  11. 24m 44s
    1. Setting the sound clip volume
      1m 5s
    2. Playing a clip automatically
      2m 23s
    3. Trimming an audio clip
      3m 52s
    4. Choosing a sound's starting and ending points
      2m 18s
    5. Fading sounds in and out
      59s
    6. Looping a sound clip
      2m 23s
    7. Delaying an audio clip
      2m 31s
    8. Rewinding after playing
      1m 13s
    9. Changing the appearance of the sound icon
      3m 13s
    10. Hiding the sound icon
      2m 5s
    11. Adding and removing audio bookmarks
      2m 42s
  12. 18m 19s
    1. Adding sound effects to transitions
      3m 10s
    2. Adding sound effects to animations
      3m 46s
    3. Triggering audio playback with objects
      2m 12s
    4. Playing a sound with a hyperlink
      1m 28s
    5. Triggering actions with audio bookmarks
      7m 43s
  13. 21m 7s
    1. Playing a sound across multiple slides
      4m 10s
    2. Building a music soundtrack
      4m 23s
    3. Playing audio tracks from a CD
      3m 26s
    4. Recording a narration
      9m 8s
  14. 23m 12s
    1. Checking and optimizing media compatibility
      3m 8s
    2. Converting media to earlier versions of PowerPoint
      2m 17s
    3. Converting media from earlier versions of PowerPoint
      2m 37s
    4. Compressing media files
      3m 47s
    5. Saving as a movie
      4m 48s
    6. Packaging a presentation for travel
      3m 43s
    7. Extracting media asset files
      2m 52s
  15. 45s
    1. Goodbye
      45s

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