使用区分真实照片与人工图片的算法进行图像的预分类与识别，对于提高基于内容的图像和影片检索的成功率有着较大的现实意义。

Some experiments show that in the image database, which has joined the computer graphics and the real photos together, the content-based image retrieval will lose much of its accuracy.

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之后出现了大量传统的图像分类方法，其中包括基于图像外部信息的图像分类和基于图像自身内容的图像分类。

Then a lot of traditional methods of image classification emerged, in which included the methods based on the keywords and the methods based on the image itself.

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之后出现了大量传统的图像分类方法，其中包括基于图像外部信息的图像分类和基于图像自身内容的图像分类。

Then a lot of traditional methods of image classification emerged, in which included the methods based on the keywords and the methods based on the image itself.

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