On this quick-tip video tutorial, we’re going to take a look at the easiest way to cut 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.
Aliasing makes edges seem jagged or “stair-stepped” moderately than easy. That is brought on by a phenomenon generally known as “sampling error,” which happens when the digicam’s sensor just isn’t capable of seize sufficient element to precisely symbolize the picture. This is sensible as a result of motion cameras typically have tiny digicam sensors, as a result of their small measurement.
Why Is This an Problem with Motion Cameras?
In addition to motion cameras having small sensors, they may often have actually excessive video sharpening turned on by default. And, in some circumstances, you might also not have the ability to flip the over sharpening off, or scale back it as a lot as you want.
One other frequent drawback with motion digicam footage is compression artifacts, which may make aliasing look even worse.
Utilizing Gaussian Blur to Repair Aliasing (The Previous Technique)
Beforehand, the one method to scale back aliasing on motion digicam footage in publish, could be to use a delicate blur to your complete shot. Nonetheless, the downside to this technique is that it’ll scale back some particulars that aren’t aliasing that we would wish to preserve.
To do that technique, merely choose your footage and navigate to Impact>Blur & Sharpen>Gaussian Blur. Then set the Blurriness quantity to 2. This may apply a delicate blur to your complete shot that may scale back undesirable aliasing flickering.
Utilizing the FXAA Plugin
FXAA is a free anti-aliasing plugin from Plugin Every part. 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 Every part>FXAA. That’s it!
It’s best to see some lowered aliasing in your motion digicam footage. You too can apply a number of situations of FXAA to your footage to stack the impact, decreasing the aliasing artifacts much more!
Are you searching for extra methods you possibly can enhance your motion digicam footage? Try our tutorial on Stabilizing GoPro Footage with the ReelSteady GO App!
within the royalty-free tracks we used to make this video? Give them one other pay attention:
License this cowl picture by way of Denis Kornilov.
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