Python 可以从卫星图像中导出纬度/经度吗？

Question

I have a satellite image and it has latitude/longitude for each pixel. Can I export the coordinate value of each pixel to.CSV file or.txt file by using Python? If it can,how to do that?

Answer 1

Yes you can export latitude/longitude from satellite images. For.tif images Below is the source code.

import numpy as np import pandas as pd import rasterio as rio

tifImage = "imagename.tif"

def extractLatLon(imageName, NumOfBands):

with rio.open(imageName) as src:
    image = src.read(NumOfBands)
    height, width = image.shape[0], image.shape[1]
    rows, cols = np.meshgrid(np.arange(width), np.arange(height))
    xs, ys = rio.transform.xy(src.transform, rows, cols)
    lat, lon = np.array(xs), np.array(ys) 
    return lat, lon
    # Flatten lat, lon if you want to [according to your needs]

def DataFrame(lat, lon): return pd.DataFrame({'lat': lat, 'lon': lon}).to_csv('File_name_to_be_saved.csv')

lat, lon = extractLatLon("ImageName.tif", NumOfBands=3) DataFrame(lat, lon)