Cut or trim your footage, improve the video quality, increase the speed of the video or create a slow-motion effect, and transform your footage in many other ways, just like iMovie. With this program, optimized for Windows 10, you can make a professional-looking movie in just half an hour – no special skills required! How to get iMovie. IMovie isn't installed on your iPhone or iPad by default, but you can pick up the iMovie app for free on the Apple App Store. There is a version for the iPad and iPhone,.
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- Ken Burns Effect works for a long time in iMovie, but it's still new for panorama in iMovie 11.0. I hardly used panorama in iMovie actually until it upgraded. Insert a panorama into the timeline and apply the Ken Burns effect, it seems to easily pan across the scene, which presents a better preview result.
- Here's how to fix these issues using iMovie on Mac. The iMovie app on Mac has a built-in tool for removing background noise and for increasing the volume. And for a free app that comes with the Mac, it does a very good job. You won't need to use an online tool or pay for a specialized program. First, you'll need the iMovie.
- The iMovie update is for the Mac, iPad and iPhone. It includes new comic-based filters, 25 new pre-created soundtracks and a number of performance and reliability improvements. The Mac also gains tools to import iMovies from iOS devices. You can explore the complete iMovie release notes for both platforms at the end of the article.
- Stabilize Shaky Footage Project
This chapter is from the book
This chapter is from the book
Stabilize Shaky Footage Project
Difficulty level: Easy
Not too long ago, if your footage exhibited camera shake—that slight bouncing or jittery motion introduced by shooting with a lightweight camera—either you compensated by locking the camera to a tripod, or you accepted the shaky video and passed it off as 'edgy.' Now, iMovie can analyze and stabilize that footage.
Analyze for image stabilization
To smooth shaky video, iMovie analyzes each frame to identify similar objects. Then, it figures out how much zoom and rotation to apply to each frame to make the objects line up, effectively removing the shake.
Given that most clips contain 24 or 30 frames per second, analyzing for stabilization can take quite a while—four to eight times the duration of the original footage, or potentially several hours if you analyze a lot of video in one batch. Fortunately, you have several opportunities to perform the analysis, allowing you to analyze a large batch at once, or smaller sections as you edit.
Analyzing a clip for stabilization
You can analyze video at any of the following points:
- When you add video to iMovie, click the 'After import analyze for Stabilization' checkbox in the Import dialog. iMovie scans all the footage being imported, tying up the program until it's finished. This is a good option to use if you want to import a lot of video overnight while you're sleeping.
- Select a clip in the Event browser and choose File > Analyze Video > Stabilization. The entire clip is analyzed, even if you've selected only a portion of it. (You can also choose to analyze for stabilization and people in the same pass.)
- Select a clip in the Project browser and choose File > Analyze Video > Stabilization. iMovie scans just the section in your movie, not the entire clip in the Event browser. However, if you add more video from the same clip in your project, iMovie analyzes it again.
- Double-click a clip to bring up the Clip inspector. If the clip is in the Event browser, click the Analyze Entire Clip button (Figure 4.27). If you've selected a clip in the Project browser, click the 'Stabilization: Smooth clip motion' checkbox.
Figure 4.27 Stabilization button in the inspector
Apply image stabilization
With your footage analyzed, you can control how much stabilization is applied. iMovie doesn't actually re-render the video; instead, it keeps track of how much zoom and rotation each frame needs to match surrounding frames.
Applying image stabilization
If the footage was previously analyzed in the Event browser, all you need to do is add the clip to your project; stabilization is automatically applied, indicated by an icon in the corner of the clip. For any clip in the Project browser that isn't yet analyzed, open the Clip inspector (double-click the clip, or select it and press the I key) and enable the 'Stabilization: Smooth clip motion' checkbox.
To control the amount of stabilization applied, drag the Maximum Zoom slider in the Clip inspector. iMovie assumes you want the most stable footage, but you may want to ease back on the setting occasionally. If the clip has a lot of motion, iMovie must zoom further in to get frames to match up—sometimes cutting out important sections of the scene, like slicing off the tops of people's heads (Figure 4.28).
Compensate for rolling shutter
How do i find my default web browser. Many of today's cameras use CMOS sensors, which record each frame in horizontal lines, scanning from top to bottom. When camera shake or sudden movement is introduced during shooting, the objects in the video appear 'bendy,' like they're made of rubber, due to an effect called rolling shutter. Although the best advice is to try to capture steady video in the first place, iMovie can help take the elasticity out of the clips (although the effectiveness varies widely, depending on the source footage).
Compensating for rolling shutter
- Make sure the clip you're editing has been analyzed for stabilization, and then open the Clip inspector.
- Under Rolling Shutter, click the 'Reduce motion distortion' checkbox (Figure 4.30).
Figure 4.30 Rolling Shutter settings
- Choose a setting from the Amount pop-up menu; iMovie defaults to Medium, but try the other amounts to see if they improve the clip.
Apply image stabilization
With your footage analyzed, you can control how much stabilization is applied. iMovie doesn't actually re-render the video; instead, it keeps track of how much zoom and rotation each frame needs to match surrounding frames.
Applying image stabilization
If the footage was previously analyzed in the Event browser, all you need to do is add the clip to your project; stabilization is automatically applied, indicated by an icon in the corner of the clip. For any clip in the Project browser that isn't yet analyzed, open the Clip inspector (double-click the clip, or select it and press the I key) and enable the 'Stabilization: Smooth clip motion' checkbox.
To control the amount of stabilization applied, drag the Maximum Zoom slider in the Clip inspector. iMovie assumes you want the most stable footage, but you may want to ease back on the setting occasionally. If the clip has a lot of motion, iMovie must zoom further in to get frames to match up—sometimes cutting out important sections of the scene, like slicing off the tops of people's heads (Figure 4.28).
Compensate for rolling shutter
How do i find my default web browser. Many of today's cameras use CMOS sensors, which record each frame in horizontal lines, scanning from top to bottom. When camera shake or sudden movement is introduced during shooting, the objects in the video appear 'bendy,' like they're made of rubber, due to an effect called rolling shutter. Although the best advice is to try to capture steady video in the first place, iMovie can help take the elasticity out of the clips (although the effectiveness varies widely, depending on the source footage).
Compensating for rolling shutter
- Make sure the clip you're editing has been analyzed for stabilization, and then open the Clip inspector.
- Under Rolling Shutter, click the 'Reduce motion distortion' checkbox (Figure 4.30).
Figure 4.30 Rolling Shutter settings
- Choose a setting from the Amount pop-up menu; iMovie defaults to Medium, but try the other amounts to see if they improve the clip.
| Click here to return to the 'Maintain both original and optimized footage in iMovie' hint |
Imovie Tutorial
Excellent hint. I wish that this was the default behavior (or at least an option), though I suppose it does use up a LOT of hard drive space.
NOTE: The 'optimized' full size video is not necessarily 'compressed' nor suffer from any lost quality. In fact, technically it's less compressed because iMovie converts it to a different format that is simply more easily accessed for scrubbing. Imagine an accordion file folder with many documents stuffed in: the original camera footage keeps the file in the 'compressed' state, though normal speed playback is possible by carefully pulling out each page. In contrast, to properly scrub through in iMovie the accordion file must be opened all the way. The footage is (should be) virtually identical, just simply stored in a different way.
Edit: Yep, my original assumption was correct — the 'Full' optimization is not lossless. Here's a side-by-side comparison of a video frame, with the original HD on the left, and the Full version on the right. Until optimizing doesn't result in that kind of artifacting, I'll be keeping my raw footage.
Thank you for running the comparison Unsoluble; I never bothered to check iMovie's conversion quality.
If anyone is interesting in full speed scrubbing AND lossless video, I've used MPEG streamclip in the past at 100% quality. The file size was outrageous, but it worked and appeared to be lossless.
How To Use Imovie On Iphone
Another trick is to create your own 'reduced' version for faster editing.
- Copy the file to you hard disk
- Use a 3rd party tool like handbrake to create a tiny res (150x100) version of the movie
- Import and optimize that file. (the optimise step will be super fast)
- Do all your editing using the tiny file and you will get super fast scrubbing even on a slow mac.
Then, when you are ready to render the final product, use the finder to swap out the tiny-res file with the original hi-res version (use the same file name).
iMovie doesn't seem to notice/care that the image size in the file has changed, and it will cut you an edit in high-res.
Great tip for anyone using iMovie on a computer that can't handle even the 960x540 versions. Although I can't imagine putting myself through that kind of suffering to begin with :)
