readBandMetaData.py 文件源码

def readBandMetaData(inputFile, band, name):
    # Open the dataset in Read Only mode
    dataset = gdal.Open(inputFile, gdal.GA_ReadOnly)
    # Check that the image has opened
    if not dataset is None:
        # Get the image band
        imgBand = dataset.GetRasterBand(band)
        # Check the image band was available
        if not imgBand is None:
            # Get the meta data value specified
            metaData = imgBand.GetMetaDataItem(name)
            # Check that it is present
            if metaData == None:
                # If not present, print error.
                print("Could not find \'", name, "\' item.")
            else:
                # Else print out the metadata value
                print(name, "=\'", metaData, "\'")

        else:
            # Print out an error message.
            print("Could not open the image band: ", band)

    else:
        # Print an error message if the file
        # could not be opened.
        print("Could not open the input image file: ", inputFile)

# A function to read a meta-data item
# from an image