基于纹理谱描述子的图像检索

提出一种新的纹理谱描述子应用于基于内容的图像检索中.讨论了小波变换的思想和纹理谱概念的联

系,根据纹理的视觉特性,提出纹理模式等价类的概念,设计出更合理的纹理谱描述子来描述图像的纹理特征.该纹

理模式刻画了领域内像素灰度变化模式,以纹理谱直方图方式表示图像纹理内容.分析了纹理谱的对称不变性和旋

-This paper presents a new texture spectrum descr iptor for content-based image retrieval(CBIR).The

relation between wavelet transition and texture spectrum method is discussed.This paper proposes the concept of

texture pattern equivalent according to texture visual nature to educe more rational texture spectrum descr iptor.The

proposed texture patterns depict the variational pattern of pixel gray scales in a domain to descr ipt images texture

feature.It represents image content in the form of texture spectrum histogram.The symmetry invariant and rotation

robusticity are discussed.Comparison with Gabor features using general image dataset indicate that the proposed

texture descr iptor takes lower extracting time and provides higher image retrieval accuracy.