最邻近插值和双线性插值对所给图像进行缩小和放大操作。限制于位图操作。-The nearest neighbor interpolation and bilinear interpolation to the image, zoom in and out of operation. Limited bitmap operations, can not be used for other types of files. Remember! Do not like do not spray....

输入一wav格式声音信号 输出对声音信号进行抽取并插值后的频谱图(源程序为8倍重采样)，并可使用play函数进行播放试听，如play(nearest),play(ori) 有ori原始音质、ups插值音质、downs抽取音质三种及以下五种重采样音质 重采样试听种类有nearest,linear,spline,pchip,cubic，插值算法详见interp1函数 可用过取消注释“高斯白噪声”、“高频噪声”对声音信号加入噪声-Wav format input-output

加权插值算法，包括加权最近邻插值，加权双线性插值，加权双三次插值，直接运行demo.m就可以。-Weighted interpolation algorithm, including weighted nearest neighbor interpolation, bilinear interpolation, weighted weighted double three interpolation, directly run the demo. M.