对示例图像进行四叉树分解，并以图像的形式显示所得的稀疏矩阵，同时取得所有子块和符合各种维度条件的子块数目。-Quadtree decomposition of the sample images, and the form of images obtained sparse matrix, at the same time to obtain the number of sub-blocks of all sub-blocks and meet the conditions of the var