• selenanur (16/16) Sep 18 2020 I'm pretty new to python and this code is for object detection,
• Guillaume Piolat (9/25) Sep 19 2020 Hello,

selenanur <selenanur097 gmail.com> writes:

I'm pretty new to python and this code is for object detection, 
it works fine on my webcam but has an error when using an 
external camera This is what I have:

for classId, confidence,box in 
zip(classIds.flatten(),confs.flatten(),bbox):
         cv2.rectangle(img,box,color=(0,255,0),thickness=2)
         
cv2.putText(img,classNames[classId-1].upper(),(box[0]+10,box[1]+30),
                     cv2.FONT_HERSHEY_COMPLEX,1,(0,255,0),2)
Here's the message I got:

Traceback (most recent call last):
   File "C:/Users/byeo9/PycharmProjects/FYP-ENV/Testing 2.py", 
line 31, in <module>
     for classId, confidence,box in 
zip(classIds.flatten(),confs.flatten(),bbox):
AttributeError: 'tuple' object has no attribute 'flatten'

Guillaume Piolat <first.last gmail.com> writes:

On Saturday, 19 September 2020 at 06:10:47 UTC, selenanur wrote:
 I'm pretty new to python and this code is for object detection, 
 it works fine on my webcam but has an error when using an 
 external camera This is what I have:

 for classId, confidence,box in 
 zip(classIds.flatten(),confs.flatten(),bbox):
         cv2.rectangle(img,box,color=(0,255,0),thickness=2)
         
 cv2.putText(img,classNames[classId-1].upper(),(box[0]+10,box[1]+30),
                     cv2.FONT_HERSHEY_COMPLEX,1,(0,255,0),2)
 Here's the message I got:

 Traceback (most recent call last):
   File "C:/Users/byeo9/PycharmProjects/FYP-ENV/Testing 2.py", 
 line 31, in <module>
     for classId, confidence,box in 
 zip(classIds.flatten(),confs.flatten(),bbox):
 AttributeError: 'tuple' object has no attribute 'flatten'

Hello,

This forum is about the D programming language.
So I'm not sure you'll find any right answer here.

 From a cursory glance, it seems your external camera doesn't lead 
to detection and as a result classIds is an empty tuple, or some 
null value. And as such doesn't enjoy having a .flatten() method.

(This is the sort of situation that static types were meant to 
avoid.)