关键词: 文档图像, 图像分割, 图像纹理, 基于内容的图像检索, 图像匹配

Abstract: The paper proposed a new method for document images retrieval based on texture spectrum descriptor. This algorithm firstly segmented the text area by document image characteristics, and then described the texture spectrum based on the text character edge, and computed the texture spectrum histogram. Compared with direct use of gray histogram image retrieval, this algorithm possesses high distinguish degree. The experimental results show that this method has high retrieval precision and resists cutting or rotating operations, and is suitable for document image retrieval.

Key words: document image, 　image segmentation, 　image texture, 　CBIR, 　image matching