本文介绍了常用3x3卷积核及其作用，包括平均模糊、锐化、边缘检测、梯度计算等，并提供了一个在线交互式演示应用，让用户可以尝试不同卷积核的效果。
（转）3x3 convolution kernels with online demo
3x3 convolution kernels with online demo
- Which are the most used 3x3 convolution kernels/matrices?
- Which kernel is used for averaging, applying blur or smooth effect, do sharpening or for the emboss effect?
- Which kernels can be used to detect edges, calculate the gradient or the smoothed gradient?
- Can I try somewhere the two dimensional convolution in an interactive application?
The frequently used 3x3 convolution kernels are listed below with some short description. At the end of this post there is an interactive demo, where
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