批量读取图片，选择一定区域求像素平均值，并进行拟合-Batch read the image, select a certain area seeking pixel averages and fitting

读取空气湿度画水汽通量分布图，压缩包含程序、数据、输出图片示例。(Read air humidity draw water vapor flux distribution map, compress include program, data, output picture example.)