我收到错误。我想对象计数

Question

我正在使用对象检测。我想同时计数对象。但是我得到了错误。你能帮忙吗？

错误：

Traceback (most recent call last):
File "C:tensorflow2modelsresearchobject_detectionObject_detection_image_say3.py", line 138, 
in 
<module>
v2.putText(input_frame, counting_mode, (10, 35), font, 0.8, 
(0,255,255),2,cv2.FONT_HERSHEY_SIMPLEX)
SystemError: <built-in function putText> returned NULL without setting an error

主代码： 我使用以下代码。我收到错误。

input_frame = cv2.imread(PATH_TO_IMAGE)
image_expanded = np.expand_dims(input_frame, axis=0)
(boxes, scores, classes, num) = sess.run(
[detection_boxes, detection_scores, detection_classes, num_detections],
feed_dict={image_tensor: image_expanded})
font = cv2.FONT_HERSHEY_SIMPLEX
counting_mode = vis_util.visualize_boxes_and_labels_on_image_array(
input_frame,
np.squeeze(boxes),
np.squeeze(classes).astype(np.int32),
np.squeeze(scores),
category_index,
use_normalized_coordinates=True,
line_thickness=2,
min_score_thresh=0.80)
if(len(counting_mode) == 0):
cv2.putText(input_frame, "...", (10, 35), font, 0.8, (0,255,255),2,cv2.FONT_HERSHEY_SIMPLEX)                       
else:
cv2.putText(input_frame, counting_mode, (10, 35), font, 0.8, 
(0,255,255),2,cv2.FONT_HERSHEY_SIMPLEX) 
cv2.imshow('tensorflow_object counting_api',input_frame)
cv2.waitKey(0)

Answer 1

你的第二个cv2putText将counting_mode作为输入 counting_mode不是字符串，因此无法显示

将counting_mode对象转换为字符串 (str(，然后再将其注入 cv2.putText