opencv二维码识别python
时间: 2023-08-29 12:12:31 浏览: 140
以下是使用OpenCV和Python识别二维码的基本步骤:
1. 安装OpenCV和ZBar库
```python
pip install opencv-python
pip install pyzbar
```
2. 导入必要的库
```python
import cv2
from pyzbar.pyzbar import decode
```
3. 加载图像并转换为灰度图像
```python
img = cv2.imread('qr_code.png')
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
```
4. 使用ZBar库解码二维码
```python
decoded = decode(gray)
```
5. 遍历解码结果并打印
```python
for obj in decoded:
print('Type : ', obj.type)
print('Data : ', obj.data,'\n')
```
完整代码:
```python
import cv2
from pyzbar.pyzbar import decode
img = cv2.imread('qr_code.png')
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
decoded = decode(gray)
for obj in decoded:
print('Type : ', obj.type)
print('Data : ', obj.data,'\n')
```
注意:确保图像中的二维码清晰可见,否则可能无法正确识别。
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