census变换代码
时间: 2024-01-12 12:05:28 浏览: 25
以下是Census变换的Python代码实现:
```python
import cv2
import numpy as np
def census_transform(img, window_size):
h, w = img.shape
census = np.zeros_like(img)
half_size = window_size // 2
for i in range(half_size, h - half_size):
for j in range(half_size, w - half_size):
binary = ''
center = img[i, j]
for m in range(i - half_size, i + half_size + 1):
for n in range(j - half_size, j + half_size + 1):
if img[m, n] < center:
binary += '0'
else:
binary += '1'
census[i, j] = int(binary, 2)
return census
```
其中,`img`为输入图像,`window_size`为窗口大小,输出为Census变换后的图像。这段代码会对输入图像中的每个像素进行Census变换,并将变换后的结果存储在输出图像的对应位置上。