Unknown C++ exception from OpenCV code

>>> result = reader.readtext('2.png')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Users\xuyic\Anaconda3\envs\pytorch2\lib\site-packages\easyocr\easyocr.py", line 390, in readtext
add_margin, False)
File "C:\Users\xuyic\Anaconda3\envs\pytorch2\lib\site-packages\easyocr\easyocr.py", line 277, in detect
False, self.device, optimal_num_chars)
File "C:\Users\xuyic\Anaconda3\envs\pytorch2\lib\site-packages\easyocr\detection.py", line 98, in get_textbox
device, estimate_num_chars)
File "C:\Users\xuyic\Anaconda3\envs\pytorch2\lib\site-packages\easyocr\detection.py", line 56, in test_net
score_text, score_link, text_threshold, link_threshold, low_text, poly, estimate_num_chars)
File "C:\Users\xuyic\Anaconda3\envs\pytorch2\lib\site-packages\easyocr\craft_utils.py", line 236, in getDetBoxes
boxes, labels, mapper = getDetBoxes_core(textmap, linkmap, text_threshold, link_threshold, low_text, estimate_num_chars)
File "C:\Users\xuyic\Anaconda3\envs\pytorch2\lib\site-packages\easyocr\craft_utils.py", line 31, in getDetBoxes_core
nLabels, labels, stats, centroids = cv2.connectedComponentsWithStats(text_score_comb.astype(np.uint8), connectivity=4)
cv2.error: Unknown C++ exception from OpenCV code

部署easyocr的时候出现问题

问题：

Unknown C++ exception from OpenCV code

思路：

Python与CUDA版本不对应，导致Python安装的OpenCV版本与CUDA版本不照应

解决方法：

CUDA版本由11.3降级为10.2

对于我部署的easyocr还有另一种解决办法，opencv-python-headless降级到4.5.1.48

小结：

easyocr搭建配置：Python 3.7 CUDA 10.2