15. Web 滤镜
| 第 17 章 滤镜 |

## 15. Web 滤镜

### 15.1. 介绍

Web filters are mostly used on images intended for web sites. The filter Image Map is used to add clickable “hot spots” on the image. The filter Semi-Flatten is used to simulate semi-transparency in image formats without alpha channel.

This category describes the following filters:

- 第 15.2 节 “Image Map”

- 第 15.3 节 “Semi-Flatten”

14.29. Spyrogimp |  | 15.2. Image Map

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