Convolution Kernel: Difference between revisions

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[[Category:Techniques]]
[[Category:Techniques]]


hope you know linear algebra!
A '''Convolution Kernel''' is when you use specific matrix transformations (known as convolutions) into a image's kernel to create a wide variety of effects. Working with these kernels can create a wide variety of effects, from blurs to sharpens and more.


A '''Convolution Kernel''' is when you use specific matrix transformations (known as convolutions) into a image's kernel to create a wide variety of effects.
While many effects in modern editors stem from a convolution kernel they usually limit editing to just that one style of effect; working with convolution kernels ''directly'' is rare as it often requires a linear algebra background and the manual editing of many matrix points.
 
=Effect Types=


==Edge Detection==
==Edge Detection==
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An '''unsharp mask''' is a type of convolution kernel where the image is masked with a copy that is blurred (or "un-sharpened"). This can make a clearer image that may have less detail.
An '''unsharp mask''' is a type of convolution kernel where the image is masked with a copy that is blurred (or "un-sharpened"). This can make a clearer image that may have less detail.


Unsharp masks have been a very popular choice in tennis in recent years, often being considered "overused" by some.
Unsharp masks have been a very popular choice in [[tennis]] in the late 2010's, popularized by players like {{mafar}}.