基于小波变换的特征提取，并且给出了利用小波变换的纹理特征提取和颜色特征提取。-Feature extraction based on wavelet transform and wavelet transform are given texture and color feature extraction feature extraction.

提出了一种基于小波和Hough 变换的仿射不变性商标检索方法. 根据商标图像色彩调、纹理简单的特点, 首先对商标图像进行二值化处理并做Hough 变换 -Proposed a Hough transform based on wavelet and affine invariance trademark retrieval method according to trademark the image color tone, texture characteristics of a simple

Image retri techniques are useful in many image-processing applications. Content-based image retri systems work with whole images and searching is based on comparison of the query. General techniques for image retri are color, texture and shape. Thes