Showing posts with label a19. Using Video Effects in iMovie. Show all posts
Showing posts with label a19. Using Video Effects in iMovie. Show all posts

Thursday, July 30, 2009

More ABout Stepping Up to More Advanced Editing


Most high-end editors simplify the capture process with a feature called log and capture. The log and capture feature allows you to create a log of clips that you want to capture. As you review the videotape and identify portions that you want to capture — a task you would undertake with any video-editing program — you simply log the timecode at the in point (beginning) and out point (end) of each piece of video you want to capture. In Adobe Premiere, you do this by clicking Set In at the beginning of the section, and then clicking Set Out at the end of the section. You can even type the timecode in the Set In and Set Out fields manually if you wish. When you’ve specified an in point and an out point, click the Log In/Out button. This adds the current in and out points to a log. The Batch Capture window serves as Adobe Premiere’s log. You can log as many sections from a tape as you want in a single log. I have logged five separate sections of video. After you have logged all of the portions of video that you want to capture from a given tape, capturing the video takes just a single mouse click. In Premiere, click the Record button at the bottom of the Batch Capture window. The software automatically rewinds and cues the tape in the camcorder as needed and captures all the sections of video that you specified. The capture process may take a while, but because it all happens automatically, you can take a lunch break while it occurs. If you capture a lot of video the old fashioned way in Apple iMovie or Pinnacle Studio, you’ll start to see why log and capture can be a big timesaver. Log and capture is just one example of the effort-saving features that advanced video-editing programs can offer. All the editing programs listed here look and work very similarly because they were designed to imitate the professional video-editing workstations used for years by broadcast pros. One of the things I really like about programs like Premiere or Final Cut Pro is the flexibility of their timelines. You normally have an almost infinite number of tracks to work with — very helpful when you want to overlay video images on top of each other. It may look like a very complex project, but I was able to assemble it quickly. The timeline currently has three video tracks and three audio tracks, but I can add more as I need them. Special effects are also a lot easier to work with in advanced editing programs. For example, suppose I want to make a video clip appear in its own little box (like a picture-in-picture display found on some TVs) and move the box across the screen. In Premiere, opening a Motion Settings dialog box for the clip is a simple matter,. Using simple point-andclick techniques with the mouse, I can draw a motion pattern for the clip and adjust zoom settings to make the clip bigger or smaller. Advanced video editors can also be powerful business productivity tools.
Corporate communications directors are finding that modern computers and
software make in-house video production more feasible (in the past it was usually
farmed out to a contractor). Businesses can use video editors to make
  • Training and orientation videos
  • Kiosk videos
  • Marketing materials
  • Presentation videos
One advantage of using video software for presentations is that once a presentation is exported to tape or DVD, you can show it almost anywhere. All you need is a TV and a VCR or DVD player. Although you lose some of the interactivity of, say, a PowerPoint presentation, you can still make a very professional-looking video using media of almost any type. Last year, for example, I used Adobe Premiere to develop a kiosk video to demonstrate some software. Using animation tools, I could simulate the movement of a mouse pointer on the screen. I can’t possibly show you all the advantages that advanced video-editing programs can offer, but this chapter shows some possibilities. Programs like Final Cut Pro, Edition, and Premiere are so advanced that the movie magic you can create is limited only by your imagination.

Stepping Up to More Advanced Editing


If it hasn’t happened to you yet, rest assured that it will: You want to do a certain kind of edit, but the software you’re using right now just won’t let you. Or you may find that some tasks are difficult or tedious to perform.
Before you get mad and break a keyboard or something, consider upgrading
to a more advanced editing program. Some well-regarded advanced editing
programs include
  • Adobe Premiere (Mac/Windows): Adobe kicked the affordable video editing revolution into high gear a few years ago with Premiere. It remains a popular choice among video professionals and hobbyists, although it has slipped in popularity in recent years as Final Cut Pro and others offer viable alternatives. Adobe Premiere retails for $549, although if you shop around, you may get a better deal by buying Premiere packaged with a high-quality video-capture card.
  • Avid Xpress (Mac/Windows): Avid has been making broadcast videoediting
  • software and equipment for years, and many professionals prefer the Avid Xpress video-editing software. And after years of spending tens (if not hundreds) of thousands of dollars for Avid editing workstations in the past, pros don’t mind the $1699 retail price of Avid Xpress. For the typical amateur moviemaker, however, some of the more affordable solutions make more sense.
  • Apple Final Cut Pro (Mac): Quickly becoming one of the most popular editing programs among pros and dedicated hobbyists, this program, which retails for $999, can do it all.
  • Apple Final Cut Express (Mac): If Final Cut Pro’s price tag is out of your reach, consider the $299 Express version. Unless you’re editing video professionally for broadcast TV or Hollywood movie studios, this is a better, much more affordable choice.
  • Pinnacle Edition (Windows): Pinnacle definitely knows video. Whether you’re a broadcast professional or DV newbie, Pinnacle has software and hardware worth considering. Edition is Pinnacle’s answer to Adobe Premiere and other high-end video editors. Pinnacle Edition DV retails for $699 with a FireWire card included, although if you already own Pinnacle Studio, you can upgrade to Edition for a lot less (at this writing, Pinnacle advertised an upgrade special of just $199).
  • Sonic Foundry Vegas (Windows): Vegas from Sonic Foundry has been quietly building a strong reputation among video editors, many of whom prefer Vegas to Adobe Premiere for Windows-based editing. The Vegas software retails for $699, though Sonic Foundry occasionally has special offers.
Although you may expect advanced editing programs to be more complex, I actually find them easier to use. For example, consider the process of capturing video from your camcorder. In Apple iMovie and Pinnacle Studio, you have to be quick with your mouse and buttons to start and stop capture. If you want to capture a lot of different scenes from a tape, this process can grow tedious because you have to sit there in front of your computer manually starting and stopping capture for each piece of video. And because you probably won’t actually capture a piece of video until you’ve reviewed it at least once, you’ll spend a lot of time rewinding the same video over and over.

Monday, June 29, 2009

Using Video Effects in Studio


Pinnacle Studio doesn’t have built-in special effects, per se, but it does offer tools to let you modify the appearance of your video clips. Here’s a summary of the tools and effects available in Studio:
  • Adjust color and lighting: You can modify colors and lighting in video clips using controls in the Adjust Colors toolbox. To open this toolbox, select a clip in the timeline and choose Toolbox➪Adjust Color. The toolbox appears above the timeline, as shown in Figure. Most of the time you won’t want to make any extreme adjustments, but you can correct color problems in video images with a little fine-tuning. If you’re going for a black-and-white look in your movie, you don’t need any special effects. Simply adjust the Saturation slider all the way to zero to remove color from the video image.
  • Blur: As you might guess, the Blur slider blurs the video image. If you set the Blur slider to number one, it does a fair imitation of a soft filter. Any higher setting, though, and the image just looks, well, blurry.
  • Emboss, Mosaic, and Posterize: These controls are of limited use, in my opinion, although they can be useful when you’re creating a custom background image (for a DVD menu, for example):
  1. Emboss gives the appearance that your video image has been embossed into plastic or metal.
  2. Mosiac changes the image into a pattern of colored square blocks. As you adjust the slider farther to the right, the blocks become larger, further distorting the image.
  3. Posterize reduces the number of colors in the image to create a cartoon-like appearance.
  • Vary playback speed: Studio has a really nice toolbox for adjusting the playback speed of video clips. To open this toolbox, choose Toolbox➪ Vary Playback Speed.
  • Overlay graphics: You can use the title editor to lay simple graphics over a video image_ Hollywood FX Pro: Pinnacle offers Hollywood FX Pro, a tool that can create some advanced video effects. Hollywood FX Pro is available as a plug-in for Studio for $99.

Controlling effects with keyframes


When you apply an effect to a clip, you may want the effect to appear only for part of the clip, or you may want the effect to change as the clip plays. In iMovie, you can make an effect appear or disappear gradually. More advanced video-editing programs like Adobe Premiere and Apple Final Cut Pro control effects by using keyframes. A keyframe is simply a frame of the movie that you set as a landmark (as you would the points you create and adjust on audio rubberbands when you edit audio). In advanced video-editing programs, you can set as many keyframes as you like, and you can change the properties of effects at each keyframe.
For example, suppose you use a rain effect on a video clip, and you want the rain to increase and decrease in intensity throughout the clip. Several seconds into the clip, you can set the rain to be very heavy. A few seconds later, create another keyframe where the rain is very light. The software automatically adjusts the Rain between those keyframes to make the change appear gradual.
Using keyframes effectively take a while to learn, and if you use a program like Adobe Premiere, I recommend you get a book that more fully describes the features of that programBut the keyframe feature does give you almost infinite control over the effects in your movies, so it’s definitely worth seeking out if you plan to move up to a more advanced editing program.

Customizing effects in Video Editing


Most effects can be customized to some extent. When you click an effect, controls relating to that effect should appear in the Effects pane, as shown in Figure. The exact controls that will be available vary depending on the effect, so some experimentation may be necessary. In Figure, I am adjusting the Virtix Flame effect, which is available as a free iMovie plug-in from Virtix (www.virtix.com). Slider controls at the bottom of the Effects pane let me control the height and appearance of the flames. Some other controls on the Effects pane are common to all effects. These include
  • Effect In: This slider lets you control when the effect begins. If you adjust this slider to create a delay, the effect appears gradually as the clip plays. If you want the effect to apply to the whole clip, leave this slider set to 00:00.
  • Effect Out: Like the Effect In control, this slider lets you end the effect before the clip ends.
  • Preview: If the tiny little preview screen in the Effects pane isn’t big enough to see the effect, click the Preview button. A short preview of the effect appears in the main iMovie viewer window, as shown in Figure.
  • Apply: Click this to apply the effect to the currently selected clip in the timeline.
After you apply an effect to a video clip, iMovie must render the effect. A thin progress bar will appear on the clip in the timeline. Rendering is a process where iMovie applies your effect to the clip and creates a new video file on your hard disk that incorporates the change. If you decide later that you want to remove an effect from a clip, select that clip in the timeline, and then use the effect controls in the Effects pane to reduce the amount of the effect in the scene. You can’t remove the effect completely, but most effects can be

Sunday, May 31, 2009

Reviewing iMovie’s effects


For a free program, Apple’s iMovie sure comes with a lot of great features, including some special effects that can quickly transform the look and feel of your video clips. Besides the effects that come with iMovie, you can add effects by installing plug-ins from Apple and third-party software vendors. To view a list of iMovie’s effects, click the Effects button. The Effects pane appears. To preview an effect, just click it in the list of effects. A small preview of the effect appears at the top of the Effects pane, using whatever video is located at the current position of the play head in the timeline.
  • Earthquake: As the name implies, this effect shakes the video image as if an earthquake were happening. Use a short earthquake effect combined with the sound of a large thud when someone falls down in your video.
  • Electricity: This one has a shocking effect on your video by creating a continuous lightning bolt in your video. Use this effect in conjunction with the Electricity sound effect in the Audio pane
  • Fairy Dust: This effect looks more like a burning fuse to me, but the folks at Apple call it “Fairy Dust,” so who am I to argue?
  • Flash: The Flash effect makes the video image flash periodically. Combine the Flash effect with the Earthquake effect to create a more disorienting scene, or combine it with the Aged Film effect to make your video look really old and deteriorated.
  • Fog: Add some mystery to your scene with the Fog effect. This effect is a classic example of an image that is often easier to edit into your video via software than to actually photograph. Use the Fog and Black & White effects together for a film noir look.
  • Ghost Trails: Slight ghost trails are added to moving objects in the video image. Here’s another effect that can be used to make a scene look disorienting.
  • Lens Flare: Lens flares are bright spots or streaks that occur when the sun or another bright light source reflects on the camera lens. You need to avoid lens flares when shooting video, but sometimes you may want to add a lens flare to make a mostly-imaginary scene look “photographed.” Professional moviemakers often add “fake” lens flares to animated or computer-generated images to make the scene look more realistic.
  • Letterbox: Simulate that Hollywood movie “widescreen” look with this effect, which puts a black bar across the top and bottom of the video image. Just keep in mind that the top and bottom of your video image will be cut off.
  • Mirror: iMovie actually offers two Mirror effects that turn half your video picture into a mirror image of the other half. One Mirror effect reflects only horizontally; the other can reflect both horizontally and vertically.
  • N-Square: Ever wonder how a housefly would see your video? The N-Square effect may show just that. This effect divides the screen into squares and copies the video clip to each square. You can adjust the number of squares from four up to 64 as shown in Figure.
  • Rain: Add some fake weather to your scene with this effect. The fake rain drops added to a video clip by this effect show up much better onscreen than real rain, yet the scene still looks realistic. Use this effect in conjunction with the Rain sound effect in the Audio pane.
  • Soft Focus: Simulate a soft filter on the camera with this effect. The Soft Focus effect works well in dream sequences, or to cover up blemishes on a video subject.

Using Video Effects in iMovie

When I mention “special effects,” what’s the first thing that pops into your mind? You’re probably envisioning spaceships soaring between the stars, giant monsters destroying a city, or a superhero soaring unassisted through the sky. Such effects are indeed special, but they only scratch the surface of how effects can be used in movies. Special effects can
  • Transport the viewer to a different place and time.
  • Show subjects that would be otherwise impossible or too expensive to photograph.
  • Change the mood or feel of a piece of video.
  • Add visual excitement or a sense of the exotic. Special effects aren’t all about spaceships and monsters. Consider the scene in Figure. I have used a Mirror effect in iMovie to create a kaleidoscopic image. This effect would look right at home in a music-video-style project.