Contentbased image retrieval is a hotspot in the research of multimedia database system and digital library.

基于内容的图像检索技术是当前多媒体数据库系统和数字图书馆研究中的一个热点。

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Digital library is a new concept and a new technology. The types of data include multimedia information such as text, voice, image and video, etc.

数字图书馆是一种新概念和新技术，数据类型包括文本、语音、图像、视频等多媒体信息。

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This paper discusses digital library and image from three aspects: image form, image making and processing, image retrieval technology.

本文从图像格式、图像加工与处理和图像检索技术三个方面论述数字图书馆与图像。

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