python写用tif立体像对提取DEM的代码
时间: 2024-04-30 16:17:12 浏览: 10
以下是一个简单的 Python 代码示例,用于从立体影像对中提取数字高程模型(DEM):
```python
import numpy as np
import rasterio as rio
def extract_dem(left_image_path, right_image_path):
# Load the left and right images as numpy arrays
with rio.open(left_image_path) as left:
left_image = np.transpose(left.read(), (1, 2, 0))
with rio.open(right_image_path) as right:
right_image = np.transpose(right.read(), (1, 2, 0))
# Compute the disparity map using a disparity algorithm
disparity_map = compute_disparity(left_image, right_image)
# Compute the DEM from the disparity map and camera parameters
dem = compute_dem(disparity_map, camera_params)
return dem
```
其中,`left_image_path` 和 `right_image_path` 是左右立体影像对的文件路径,`compute_disparity()` 是用于计算视差图的算法函数,`compute_dem()` 是用于从视差图和相机参数计算 DEM 的函数,`camera_params` 是相机的内部和外部参数。请注意,这只是一个简单的示例,您需要根据自己的数据和要求进行修改。