利用python GDAL库读写geotiff格式的遥感影像方法

from osgeo import gdal
import numpy as np
def read_tiff(inpath):
  ds=gdal.Open(inpath)
  row=ds.RasterXSize
  col=ds.RasterYSize
  band=ds.RasterCount
  geoTransform=ds.GetTransform()
  proj=ds.GetTransform()
  data=np.zeros([row,col,band])
  for i in range(band):
   dt=ds.GetRasterBand(1)
   data[:,:,i]=dt.ReadAsArray(0,0,col,row)
  return data
 
def array2raster(outpath,array,geoTransform,proj):
 cols=array.shape[1]
 rows=array.shape[0]
 driver=gdal.GetDriverByName('Gtiff')
 outRaster=driver.Create(newRasterfn,cols,rows,1,gdal.GDT_Byte)
 outRaster.SetGeoTransform(geoTransform)#参数2,6为水平垂直分辨率，参数3,5表示图片是指北的
 outband=outRaster.GetRasterBand(1)
 outband.WriteArray(array)
 outRaster.SetProjection(proj)#将几何对象的数据导出为wkt格式
 outRaster.FlushCache()
 
if _name=="_main_":
 
 data,geoTransform,proj=read_tiff('d:/a.tif')
 
 array2raster("d:/b.tif",np.zeros[2400,2400],geoTransform,proj)