The indexing of an image database is often referred as feature extraction. Mathematically, a feature is an n-dimensional vector, with its components computed by some image analysis. The most commonly used visual cues are color, texture, shape, sp

用VC实现的Gabor纹理提取器，注释清楚，是一个很经典的Gabor处理，可以多角度多尺度提取Gabor特征-Gabor texture extractor with VC, comments, is a classic Gabor processing can multi-angle multi-scale extraction Gabor feature

图像检索中的纹理特征；基于共生矩阵纹理特征提取，根据输入图像数据进行计算并返回八维纹理特征行向量-Texture feature in image retri texture feature extraction based on co-occurrence matrix, and then calculate and return eight dimensional texture feature row vector according to the input image data.