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EP 28: FilmoraPro Auto Stabilizer

By - Sep 14, 2021 14:05 PM

Hi everyone, in this tutorial, we’ll learn how to stabilize our videos. We’ll learn how Video Stabilization works, how to apply it, and adjust it.

Usually, when we record handheld video, the results will have some jittering or shaking. As it has happened to the people, we’ve taken as an example for this tutorial. This kind of movement can be unpleasant to watch so that we can apply Video Stabilization to this clip. It will smooth down the camera movement, and it will make the video a little bit neater.

We are explaining here how we can use this feature to make our videos better.

Load Video in Filmora Pro for Stabilization

add clip

After putting the clip that we want to stabilize on to the timeline, we should first trim out the sections of the clip that we are not using. This will save us some processing time. Then we can apply the auto stabilizer effects, which can be found in the effects panel inside the Video Cleanup Folder.

choose effect

As soon as the effect is applied, it will start to analyze the section of the clip. This can take some time, and we can see the process data at the bottom of the viewer and in the effects control panel. We can continue editing while the process takes place. Once the process is over, the image will be auto stabilized and cropped. Here we can compare the before and after version of the clip.

Learn How Video Stabilization Works

Video Stabilization works by finding high contrast points and then tracking them along with the clip. Each point will be automatically classified. If these points are out of focus or don’t have enough contrast, they can’t be tracked. The points which more accurately represent the movement of the camera will be colored green. And the stabilization will mainly be based on these points. You’ll also see some red points on areas that less accurately represent the movement of the camera. These will still factor into the stabilization but to a lesser degree.

green point

When most of the points move to one side, this moves the camera originally moved or rotated in the opposite direction. If these points spread out from the center, it means the camera moved forward or zoomed in. With this information, Filmora Pro can smooth the movement by moving, scaling, rotating, and warping the frame to counteract the unwanted movements. But if we transform around the clip, its edges and the background behind it might become visible.

adjust clip

So, this image needs to be cropped and scaled afterward. That’s why a video will always lose some quality or resolution after being stabilized.

Take Advantage of the Custom Effects

Usually, the effect applied by default will be good enough. But in some cases, we might want to tweak it a little bit to get the results we are looking for. If we select the effect on the Controls Panel, we can adjust the stabilizing options. The crop window slider will let us select the percentage of the frame that will remain uncropped. So, a lower percentage will crop the image more to allow for stronger stabilization.

The smoothness slider lets us blend between the original camera movement and the stabilized shot, where 0% is the original shot, and 100% is with the stabilization fully applied. If we reduce the smoothness, the image won’t need to be as cropped. If we uncheck the stabilize box, the video will not be stabilized or cropped. But in the viewer, we can see how much the effect will crop the image.

adjust effects

This can help us decide how much to adjust the smoothness and the crop window sliders. But we need to remember to check it back on after the adjustments. In the viewer, when the stabilizing effect is selected, we can see all the tracking points. The green ones are the good tracking points, and the red ones are not-so-good tracking points. The green ones are the inactive points that do not affect the stabilization at all. In this window, we can activate or deactivate the points.

If the remove option is selected, we can draw a lasso around the points we don’t want to affect the stabilization. This will deactivate the points and turn them gray. If we click on Add, we can select gray points and make them active. And if we select “Replace,” Filmora Pro will deactivate all of the points except for the ones we select with the lasso.

Additional Options to Stabilize Certain Aspects of the Video Clip

In this example, this video looks pretty good with default stabilization. But if we want the horizon to be as steady as possible, we can select only the points on the horizon to stabilize the footage. To do that, we’ll select the Replace option in the view and then select the point in the background. Then we’ll move the playhead to check if we want to Add or Remove other points along with the clip.

Finally, we’ll re-enable the stabilized checkbox to get the new stabilized result. And now, we can see that the background is much steadier, especially if we compare it with the previous stabilization.

For a different kind of results, we can choose to stabilize the video according to the points on Man’s face in the clip. We can see that the results are clearly different. The movement looks like an action cam attached to his head.

face stabilization

If we want to apply additional effects to the clip, we should place them below the Auto Stabilizer in the Controls Panel. So, the stabilization only affects the video clip and not the effects being applied.

So, that’s how you can stabilize your clips in Filmora Pro. To learn more about editing in Filmora Pro, check out our other tutorials in the series. Remember, there is no limit to what you can make!!

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