marr边缘检测算子python
时间: 2023-10-15 16:23:54 浏览: 109
在Python中,可以使用OpenCV库来实现Marr边缘检测算子。 OpenCV是一个广泛使用的计算机视觉库,提供了各种图像处理和计算机视觉算法的实现。下面是使用OpenCV实现Marr边缘检测算子的代码示例:
```python
import cv2
import numpy as np
def marr_edge_detection(image):
# 高斯平滑
smoothed = cv2.GaussianBlur(image, (5, 5), 0)
# 拉普拉斯边缘检测
laplacian = cv2.Laplacian(smoothed, cv2.CV_64F)
return laplacian
# 读取图像
image = cv2.imread('image.jpg', 0)
# 执行Marr边缘检测算子
edges = marr_edge_detection(image)
# 显示结果
cv2.imshow('Original', image)
cv2.imshow('Edges', edges)
cv2.waitKey(0)
cv2.destroyAllWindows()
```
上述代码中,首先使用`cv2.GaussianBlur`函数对图像进行高斯平滑处理,然后使用`cv2.Laplacian`函数进行拉普拉斯边缘检测。最后,通过`cv2.imshow`函数展示原始图像和检测到的边缘。你可以根据需要修改代码中的参数,并根据自己的图像进行测试和调整。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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