Easy methods to Scale back Sharpness on Motion Cameras in Submit

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On this quick-tip video tutorial, we’re going to take a look at one of the simplest ways to scale back aliasing points that always happen on motion digicam footage. To do that, we’re going to be working in After Results, utilizing a free plugin referred to as FXAA.

Aliasing is a distortion artifact that may happen on any footage, however this can be very frequent on footage from motion cameras, drones, and cell telephones.

Blurred footage of a boat sailing on a body of water — *Scaled up 4K footage displaying the aliasing noticeable on the water path behind the boat.*

Aliasing makes edges seem jagged or “stair-stepped” slightly than clean. That is brought on by a phenomenon referred to as “sampling error,” which happens when the digicam’s sensor isn’t in a position to seize sufficient element to precisely characterize the picture. This is smart as a result of motion cameras usually have tiny digicam sensors, as a consequence of their small measurement.

Why Is This an Challenge with Motion Cameras?

Apart from motion cameras having small sensors, they’ll often have actually excessive video sharpening turned on by default. And, in some instances, you might also not have the ability to flip the over sharpening off, or cut back it as a lot as you want.

One other frequent downside with motion digicam footage is compression artifacts, which may make aliasing look even worse.

Small action camera mounted to the front of a car — *Small motion digicam mounted to the entrance of a automotive.*

Utilizing Gaussian Blur to Repair Aliasing (The Previous Methodology)

Beforehand, the one solution to cut back aliasing on motion digicam footage in submit, could be to use a delicate blur to the whole shot. Nonetheless, the disadvantage to this methodology is that it’ll cut back some particulars that aren’t aliasing that we’d wish to preserve.

Side by side example footage with an example of no blur next to the Gaussian Blur effect applied — *Aspect by facet instance footage with an instance of no blur subsequent to the Gaussian Blur impact utilized.*

To do this methodology, merely choose your footage and navigate to Impact>Blur & Sharpen>Gaussian Blur. Then set the Blurriness quantity to 2. It will apply a delicate blur to the whole shot that may cut back undesirable aliasing flickering.

Utilizing the FXAA Plugin

FXAA is a free anti-aliasing plugin from Plugin All the pieces. The plugin appears in any respect the pixels in your footage and makes use of an edge detection algorithm, which then applies a blur that smooths out the jagged edges.

Due to this, FXAA renders actually quick, making it nice to be used on motion digicam footage.

Utilizing the plugin in your footage is extremely easy. Simply choose your footage within the composition, then navigate to Impact>Plugin All the pieces>FXAA. That’s it!

You need to see some diminished aliasing in your motion digicam footage. You may also apply a number of cases of FXAA to your footage to stack the impact, decreasing the aliasing artifacts much more!

Side by side example of the original footage next to the FXAA effect applied — *Aspect by facet instance of the unique footage subsequent to the FXAA impact utilized*.

Are you searching for extra methods you’ll be able to enhance your motion digicam footage? Try our tutorial on Stabilizing GoPro Footage with the ReelSteady GO App!