## 4. 增强滤镜

### 4.1. Introduction

Enhance filters compensate for image imperfections. Such imperfections include dust particles, noise, interlaced frames (coming usually from a TV frame-grabber) and insufficient sharpness.

This category describes the following filters:

- 第 4.2 节 “Antialias”

- 第 4.3 节 “Deinterlace”

- 第 4.4 节 “High Pass”

- 第 4.5 节 “Noise Reduction”

- 第 4.6 节 “Red Eye Removal”

- 第 4.7 节 “Symmetric Nearest Neighbor”

- 第 4.8 节 “Sharpen (Unsharp Mask)”

- 第 4.9 节 “Despeckle”

- 第 4.10 节 “NL Filter”

- 第 4.11 节 “Wavelet Decompose”

3.13. Tileable Blur |  | 4.2. Antialias

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