Standard deviation will range from 0.5 upwards while steps can be a number from 1 to 6. In FFmpeg the gblur filter takes 2 parameters, the standard deviation and the number of steps for gaussian approximation. Now lets use the same parameters on the gaussian blur effect filter gblur.

ffmpeg -i man.mp4 -vf 'boxblur=50:5' -c:a copy man-blur-more-more.mp4 You can increase the intensity of the blur with a second parameter, below uses a radius value of 50 that is then applied 5 times resulting in a very strong blur effect.

ffmpeg -i man.mp4 -vf 'boxblur=50' -c:a copy man-blur-more.mp4 Increasing the number of the boxblur filter increases the radius of the blur. Here is the video we will be applying blur effects to:Īpplying a mild box blur effect ffmpeg -i man.mp4 -vf 'boxblur=10' -c:a copy man-blur.mp4 We will take a look at both in this article. Yes, FFmpeg supports two types of blur effects - box blur and gaussian blur.

It is a type of blur effect that uses a Gaussian function for calculating the transformation to apply to each pixel in the image. The most common types of blur are radial blur, box blur, variable blur and gaussian blur.Ī gaussian blur is a particular type of blur. You can blur an image using different calculations / formulas and the results will be slightly different. You may want to anonymize the people in it, you may want to use it as a background etc.īlurring can be achieved natively in FFmpeg via a simple command. Sometimes you may want to blur a video, for various reasons. Blurring a video is actually quite simple with FFmpeg, although you will need a few attempts to see what settings work best for you.

How to use ffmpeg on jupyter