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Blur 是一种常见的效果，在 Adobe 软件 After Effect 中可以找到以下几种：
| 类型 | 解释 |
| Box Blur | A box blur, (also known as a box linear filter) is a spatial domainlinear filter in which each pixel in the resulting image has a value equal to the average value of its neighboring pixels in the input image. |
| Channel Blur | Blur each channel separately |
| Compound Blur | The Compound Blur effect blurs pixels in the effect layer based on the luminance values of a control layer, also known as a blur layer or blurring map. |
| Gaussian Blur | 后面会有一篇文章来讲高斯模糊 |
| Motion Blur | How is motion blur implemented in modern realtime renderers ? [1] |
| … | 其他的效果详见 Adobe After Effect 文档 |
[1]: How is motion blur implemented in modern real time renderers ?
[2]: An investigation of fast real-time GPU-based image blur algorithms
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原文地址：http://www.cnblogs.com/x5lcfd/p/5507144.html
