image processing getting max connected component of an image

二维数据平滑，跟定二维数据，每9个点拟合，中间点带入拟合的曲线，得到平滑后的数据-2 d data smoothing, with 2 d data, fitting every nine points, intermediate points to the fitting curve, get data after smoothing

点目标成像 基于RD算法的九点目标成像 相干解调形成回波 再距离向压缩 用RD算法最后成像-Point target imaging based on the RD algorithm nine point target imaging coherent demodulation to form the echo and then to the compression of the RD algorithm final imaging