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With the green-screen effect in iMovie, you can superimpose a video clip over a background video clip, photo, or other image. First, record your subject in front of a green or blue screen. Next, add that clip above the background clip in the iMovie timeline. Then, use the green-screen effect in iMovie so the background clip is visible behind your subject.
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Record video in front of a green or blue screen
Record video with your iPhone, iPad, iPod touch, or another camera in front of a green or blue screen. If the subject of your video is green or is wearing green, record in front of a blue background. If the subject of your video is blue or is wearing blue, record in front of a green background.
Use the green-screen effect in iMovie on iPhone, iPad, or iPod touch
- With your project open, add the background video clip or still image to the timeline.
- Scroll the timeline so that the playhead (the white vertical line) appears over the background clip.
- Tap the Add Media button , tap a category from the list, then tap the green-screen clip to select it.
- Tap the More button , then tap Green/Blue Screen. The green-screen clip is added to the timeline above the background clip.
- In the viewer, tap Auto to automatically remove the green or blue from the clip. Or tap the color in the clip in the viewer to remove that color.
- Trim and move the background video clip to match the length of your green-screen clip. Because the clips are connected, the two clips move together when you rearrange clips in the timeline.
Adjust the green screen effect on iPhone, iPad, or iPod touch
After you’ve added the green-screen effect, you can make adjustments. Tap the green-screen clip you want to adjust in the timeline, then use any of the green-screen controls to make adjustments:
- To change the amount of green or blue removed from a green-screen clip, tap the Adjust button, then drag the Strength slider left or right.
- To crop parts of a green-screen clip, tap the Mask button, then drag the corners.
Use the green-screen effect in iMovie on Mac
- With your project open, add the background video clip or still image to the timeline.
- Add the green-screen clip above the background clip in the timeline.
- Trim and move the background video clip to match the length of your green-screen clip. Because the clips are connected, the two clips move together when you rearrange clips in the timeline.
- If the video overlay controls aren’t shown, click the Video Overlay Settings button above the viewer, then choose Green/Blue Screen from the pop-up menu.
In the viewer, iMovie removes the green or blue from the green-screen clip to reveal the background clip behind your subject. Because the clips are connected, the two clips move together if you rearrange clips in the timeline.
How To Use Imovie On Iphone
The color that iMovie removes is based on the dominant color in the frame at the position of the playhead when you choose Green/Blue Screen from the pop-up menu. If the frame below the playhead isn’t representative of the rest of the clip, reposition the playhead and reapply the effect.
Adjust the green screen effect on Mac
After you’ve added the green-screen affect, you can make adjustments. Select the green-screen clip in the timeline, click the Video Overlay Settings button , then use any of the green-screen controls to make adjustments.
- To adjust the transition between the green-screen clip, drag the Softness control.
- To isolate areas of the green-screen clip, click the Crop button , then drag the corners of the frame in the viewer.
- To mask parts of the green-screen clip, click the Clean-Up button , then drag across the clip in the viewer.
Learn more
A video’s aspect ratio is the ratio of the width to height (respectively) of the video. It is simply how the video appears on the screen. By default, the aspect ratio is set by the recording device—your phone, computer, digital camera, etc.
These days, 16:9 (widescreen aspect ratio) is the preferred ratio widely used in TVs, computers and smartphones.
Among other commonly used aspect ratios, 4:3 was mostly used in the past as screens were much smaller and almost squares. 1:1 is used for Instagram, 9:16 for TikTok, 21:9 for cinema.
Among other commonly used aspect ratios, 4:3 was mostly used in the past as screens were much smaller and almost squares. 1:1 is used for Instagram, 9:16 for TikTok, 21:9 for cinema.
Uploading an image or video to a platform that requires specific ratios (e.g 16:9 for YouTube) will require you to crop it—leaving out important parts. Other times, you may just discover that files become abnormally cropped or stretched when viewing. Actually, you wouldn’t face such issues if you apply the appropriate aspect ratio
— so, let’s quickly learn how to do this using video editing tools. Moving on…
How to Change Aspect Ratio in iMovie 10
Want to change aspect ratio on Mac using iMovie? First, please note that the aspect ratio in iMovie 10 is fixed at 4:3 for SD videos and, 16:9 for HD videos. iMovie 10 users face a common issue when trying to achieve a standard aspect ratio—for example, square aspects ratio on iMovie. Even if the video is cropped, one may not get the desired output as the area within the cropped frame fills the entire viewing device screen. The alternative solution suggested below (using Filmora) will do a better job as Filmora Video Editor has dedicated aspect ratio functions for video/photos. However, you could use the following steps to crop your video using iMovie:
Step 1. Launch iMovie and import your videos.
Create a project or open an existing project containing the video you want to crop. Browse and import/drag and drop the video on the timeline.
Step 2. Crop your media file to change raspect ratio.
Just above the timeline, you’ll find the crop icon (as in the image above). Click on it and adjust your video size. When you’re done, click on Reset.
NOTE: If you want standard and fixed values for better presentation such as 16:9, 4:3 or 1:1, use the Alternative solution below:
Alternative Solution: Change Aspect Ratio on Mac/Windows using Filmora Video Editor
How To Imovie Iphone
Get out movie movierulz. Filmora Video Editor for Mac (or Filmora Video Editor) is a powerful video editor which can help you easily edit and change aspect ratio of videos.
There are two methods of changing aspect ratio using Filmora, you can either set custom values A.K.A cropping or select from the pre-set —16:9, 4:3, 1:1 and 9:16 (method recommended). Click the bouton below to install Filmora on your Mac or PC and try these simple methods.
Free DownloadFor Win 7 or later (64-bit)
Step 1. Import your media file.
Simply launch Filmora Video Editor and create a new project and import/drag and drop the media file to the timeline —that’s if it doesn’t already exist in a project; if it does, simply open the project.
Step 2. Change adpect ratio
Right-clicking on the video on the timeline will display more editing options. Find and click on Crop and Zoom as in the picture below:
After clicking Crop and Zoom, you’ll find Ratio (16:9, 4:3, 1:1, 9:16, custom) below the video.
1. Change aspect ratio by cropping your file: The option you’re looking for is Custom. Simply adjust the crop handles and focus on the area you want.
2. Change video aspect ratio to 16:9, 4:3, 1:1 or 9:16: Using pre-set values for video aspect ratio is usually the best approach to modifying video aspect ratio. That way, your video looks good on all devices capable of handling media files.
Click here to know more ways about changing aspect ratio in Filmora Video Editor >>
Free DownloadFor Win 7 or later (64-bit)
How to Change Aspect Ratio in iMovie on iPhone
Video editing can also be done on the iPhone using iMovie. However, just like iMovie for Mac, standard/pre-set values for video aspect ratio such as a square movie aspect ratio can’t be achieved on iMovie for iPhone—well, unless you achieve that manually.
Thankfully, an alternative method using FilmoraGo (mobile version of Filmora Video Editor) can be used to set standard video aspect ratios. If you want standard ratios, you can skip to the alternative solution below, otherwise use the steps below to change the video aspect ratio in iMovie for iPhone (crop): What is advanced excel wikipedia.
1. Open iMovie on your iPhone.
2. Click the Plus icon and select Movie.
3. Import your video(s).
4. Tap the video in the timeline and select the magnifying glass to start cropping.
5. Zoom/Crop your video as desired.
6. Click Done, and next Save Video.
2. Click the Plus icon and select Movie.
3. Import your video(s).
4. Tap the video in the timeline and select the magnifying glass to start cropping.
5. Zoom/Crop your video as desired.
6. Click Done, and next Save Video.
Alternative Solution: Change Aspect Ratio using FilmoraGo
With FilmoraGo (available on iOS now) you can use standard and internationally recognised video aspect ratios for your videos. Please follow the simple steps below to change aspect ratio using FilmoraGo.
Step 1. Create a new project or open your recent project.
Step 2. Select Canvas: On the next screen after adding a video, select Canvas from the list at the bottom of the page.
Step 3. Select Format: You can select your desired ratio in Format. 1:1 is a squared image/video—appropriate for profile photos on WhatsApp, for example.
Write in the end
Hopefully, you’ve learnt how to change a video's aspect ratio to custom values using iMovie and custom/standard/pre-set values using Filmora Video Editor for Mac (or FilmoraGo). That was our major goal—the aim of this tutorial.
You see, setting the appropriate video aspect ratio is important as it helps compose better videos. It also helps you understand how to configure your camera to capture with the appropriate ratio so as to you upload or share your videos with zero or little editing.
Free DownloadFor Win 7 or later (64-bit)
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