opencv中利用LSD算法对线段进行检测,并计算出相邻两个线段之间所差的像素点
时间: 2024-02-18 19:06:04 浏览: 182
在OpenCV中,可以使用LSD算法(Line Segment Detector)对图像中的线段进行检测。LSD算法可以检测出图像中的直线段,并返回它们的起点和终点坐标。以下是一个检测线段并计算相邻两个线段之间像素点差异的示例代码:
```python
import cv2
# 读取图像
img = cv2.imread('test.jpg')
# 转换为灰度图像
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
# 创建LSD检测器对象
lsd = cv2.createLineSegmentDetector()
# 检测线段
lines, width, prec, nfa = lsd.detect(gray)
# 计算相邻两个线段之间的像素点差异
for i in range(len(lines)-1):
x0 = int(round(lines[i][0][0]))
y0 = int(round(lines[i][0][1]))
x1 = int(round(lines[i][0][2]))
y1 = int(round(lines[i][0][3]))
x2 = int(round(lines[i+1][0][0]))
y2 = int(round(lines[i+1][0][1]))
x3 = int(round(lines[i+1][0][2]))
y3 = int(round(lines[i+1][0][3]))
diff = abs(((x1-x0)*(y2-y1))-((x2-x1)*(y1-y0))) # 计算像素点差异
print("Line ", i, " and line ", i+1, " pixel difference: ", diff) # 输出结果
```
在这个示例中,我们首先读取了一张图像,然后将其转换为灰度图像。接下来,我们创建了一个LSD检测器对象,并使用它来检测图像中的直线段。检测完成后,我们遍历每条线段,并计算相邻两个线段之间的像素点差异。最后,我们打印出每个差异值的结果。
阅读全文
相关推荐
![application/x-gzip](https://img-home.csdnimg.cn/images/20250102104920.png)
![.zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![rar](https://img-home.csdnimg.cn/images/20241231044955.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![txt](https://img-home.csdnimg.cn/images/20241231045021.png)
![zip](https://img-home.csdnimg.cn/images/20241231045053.png)
![application/x-rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![application/x-rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![application/x-zip](https://img-home.csdnimg.cn/images/20210720083736.png)