The Science Behind Blurring Tools

#blurphotoediting #graphicdesign Blur filters are a key tool for designers. Blurring is intentionally used to provide a sense of depth, creating smoother gradients, making transitions... It can even be useful to remove noise or otherwise undesired parts of any given image. In this episode, we take a look at what exactly is your computer doing when you crank up that blur slider. ⁜ Minor correction: 25 operations per pixel on a 100x100 pixel image amounts to 250K operations, not operations. Chapters 00:00 Intro 00:44 What is blurring? 01:23 Box filter 02:33 Blurring more 03:14 Edge cases 04:10 Gaussian filter 05:03 Extending the concept 05:51 Median filter 06:07 Minimum and Maximum filters 06:17 Sharpen filter 06:38 A word on optimization 07:08 Some perspective 08:05 Outro References ⁜ Here are some articles I found interesting: After Effects users might want to check this out: Wikipedia – Median filter Useful details I used in my own implementation: ⁜ This whole process is known as a convolution. There’s a splendid catalog of resources to learn more: Convolution – Wikipedia A deeper dive into convolutions Interactive visualization of a convolution: ⁜ Socials: Webpage: Github: Twitter: ⁜ keywords: Blurring effects, Filter types, Gaussian blur, Motion blur, Lens blur, Bokeh, Depth of field, Photoshop filters, Video editing, Image processing, Visual effects, Softening, Focal point, Digital photography, Creative techniques, Blur intensity, Aperture, Shutter speed, Post-processing.