提出了一种改进的基于颜色感知特征和图象检索方法。这种方法采用符合人类视觉特征的HSV颜色空间来表示图象的颜色特性，利用人对颜色的感知来对颜色分量进行等间隔的量化工形成特征矢量，用直方图交叉算法进行图象的匹配。用户可以通过示例方式，指定颜色或指定区域来表示查询的视觉要求。

The paper focuses on the stripe noise that only but often occurs in SAR image. The paper analyses the spectrum of the image with noise, discusses the limitations of the repairing methods which always being used and presents a new method, Orientation Filter, to eliminate noise. The correctness of the method is verified in this paper, and the steps of applying the orientation filter are provided. Experiments proved that orientation filter can satisfactory filter the stripe noise and preserves as many target characteristics of original images as possible.