Use this feature to select a specific object or area of your video and easily apply an effect that tracks throughout the video, like brightening the subject or blurring the background. You can also apply this effect to your photos.
Next, select the object or the part of your video/ photo that you want to apply the effect to. From the Draw drop-down, select the appropriate tool.
Pen: The simplest path that you can draw with the Pen tool is a straight line with two vertex points. By continuing to click, you create a path made of straight-line segments connected by vertex points.
Circle: Use this tool to create a circular or ellipse-shaped selection.
Rectangle: Use this tool to create a to create a four-sided polygon.
At this point, it is important to track your selection. Click on Track button to start the tracking. Tracking will ensure the object is selected even as the frames change and the object moves.
Use the drop-down under Selection 1 to chosse from:
Track from this frame: Tracks from the frame at playhead postion till the end of the clip.
Track till this frame: Tracks from the beginning of the clip till the frame at playhead postion.
Use the left and right arrow keys to track the selection one frame forward and backward at a time. This allows you to track frame by frame for more accurate results. Use this feature for better tracking of fast moving objects.
You can also copy your selection by hovering over the More option (three dots on the right side of Track option) and selecting Copy.
If you have readjusted the selection in any frame, select Re-track to track again from the playhead position till the end of the clip.
Select object tracking technology might not give expected results with fast-moving objects (lots of motion blur), when the object goes off screen, or when the object is occluded (some other object passes in front of it). In these scenarios, try frame by frame tracking by dragging the CTI to that frame and adjusting the selection.
Use the sliders to adjust Feather, Opacity, and Expansion.
Feather: Feathering softens the borders of the selected area so that it blends into the area outside the selection, and provides an aesthetically pleasing result.
Opacity: This allows you to adjust the transparency of the image/ video. At a value of 100, the effect is opaque and blocks out any underlying area of the layer.
Expansion: Expansion lets you expand or contract the area of the applied effect.
Click play to see the final result. To export the final output, select File > Export and Share. For information about various exports and share options available, see Export and share your videos.