灰度共生矩阵 在提取纹理特征时存在的问题，提出一种基于方块编码（BTC）的图像纹理特征的检索算法。 -gray level co-occurrence matrix A novel image retrieval method based on block truncation coding(BTC) is proposed to solve the problems of gray level co-occurrence matrix

基于vc的高效BTC图像编码算法用于图像编码(image compression using modified block truncation coding algorithm)