"error: (-2:Unspecified error) Can't create layer" shows while using net.detect in python.how to fix this type problem?

Question

I am facing a problem in classIds, confs, bbox = net.detect(img,confThreshold=float(0.5)).

How to fix it?Please help.Thanks in advance.

import cv2
img= cv2.imread('lena.png')
classNames= []
classFile = 'coco.names'
#coco names er file gula class names e rakha
with open(classFile,'rt') as f:
    classNames = f.read().rstrip('\n').split('\n')

print(classNames)

configPath = 'ssd_mobilenet_v3_large_coco_2020_01_14.pbtxt'  #configuration path
weightsPath = 'frozen_inference_graph.pb'


net = cv2.dnn_DetectionModel(weightsPath,configPath)
net.setInputSize(320,320)
net.setInputScale(1.0/ 127.5)
net.setInputMean((127.5, 127.5, 127.5))
net.setInputSwapRB(True)


classIds, confs, bbox = net.detect(img,confThreshold=float(0.5))
print(classIds,bbox)
cv2.imshow("Output",img)
cv2.waitKey(0)

C:\Users\User\AppData\Local\Programs\Python\Python37\python.exe "H:/My ML Projects/object detection/test.py"
['person', 'bicycle', 'car', 'motorcycle', 'airplane', 'bus', 'train', 'truck', 'boat', 'traffic light', 'fire hydrant', 'street sign', 'stop sign', 'parking meter', 'bench', 'bird', 'cat', 'dog', 'horse', 'sheep', 'cow', 'elephant', 'bear', 'zebra', 'giraffe', 'hat', 'backpack', 'umbrella', 'shoe', 'eye glasses', 'handbag', 'tie', 'suitcase', 'frisbee', 'skis', 'snowboard', 'sports ball', 'kite', 'baseball bat', 'baseball glove', 'skateboard', 'surfboard', 'tennis racket', 'bottle', 'plate', 'wine glass', 'cup', 'fork', 'knife', 'spoon', 'bowl', 'banana', 'apple', 'sandwich', 'orange', 'broccoli', 'carrot', 'hot dog', 'pizza', 'donut', 'cake', 'chair', 'couch', 'potted plant', 'bed', 'mirror', 'dining table', 'window', 'desk', 'toilet', 'door', 'tv', 'laptop', 'mouse', 'remote', 'keyboard', 'cell phone', 'microwave', 'oven', 'toaster', 'sink', 'refrigerator', 'blender', 'book', 'clock', 'vase', 'scissors', 'teddy bear', 'hair drier', 'toothbrush', 'hair brush']
Traceback (most recent call last):
  File "H:/My ML Projects/object detection/test.py", line 22, in <module>
    classIds, confs, bbox = net.detect(img,confThreshold=float(0.5))
cv2.error: OpenCV(4.2.0) C:\projects\opencv-python\opencv\modules\dnn\src\dnn.cpp:562: error: (-2:Unspecified error) Can't create layer "FeatureExtractor/MobilenetV3/Conv/hard_swish/add" of type "AddV2" in function 'cv::dnn::dnn4_v20191202::LayerData::getLayerInstance'


Process finished with exit code 1

Can you please include the full traceback of the error message? — mkrieger1, Sep 17 '20 at 07:14
Similar question: https://stackoverflow.com/questions/60840403/opencv-dnn-exception-ssd-mobilenetv2 — mkrieger1, Sep 17 '20 at 07:16
Have you installed opencv_contrib? You need it to use the DNN functionality. — yudhiesh, Sep 17 '20 at 07:17
i edited the error message. Yes i installed opencv-contrib-python. — Kheya_COU, Sep 17 '20 at 07:21

score 1 · Answer 1 · answered Nov 02 '20 at 05:35

1

Try:-

pip install --upgrade opencv-python

answered Nov 02 '20 at 05:35

Tushar surve

11
1

score 1 · Answer 2 · edited Dec 11 '20 at 05:10

1

Run

pip install --upgrade opencv-python

When I upgraded OpenCV from version 4.2 to 4.4, the error was fixed.

[[1]] [[ 60  40 373 461]]

Process finished with exit code 0

edited Dec 11 '20 at 05:10

ndrwnaguib

5,623
3
28
51

answered Dec 11 '20 at 04:08

Shamil

11
3

score 0 · Answer 3 · edited Oct 31 '20 at 17:07

0

Install opencv library using:

pip install opencv-python

It'll work.

edited Oct 31 '20 at 17:07

Grayrigel

3,474
5
14
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answered Oct 31 '20 at 12:54

Amruta

1

score 0 · Answer 4 · answered May 23 '21 at 17:45

0

Uninstall opencv and install again with newer version, don't upgrade! I had same issue and it's help me...

answered May 23 '21 at 17:45

Artak Avetisyan

1
1

score 0 · Answer 5 · edited Sep 21 '21 at 21:45

0

pip install --upgrade opencv-python #upgrade opencv

And restart Jupyter notebook or other editors then run error won't come

print(cv2.__version__) # for checking version

edited Sep 21 '21 at 21:45

LHLaurini

1,737
17
31

answered Sep 20 '21 at 17:17

Progo Bot

1

score 0 · Answer 6 · edited Jan 07 '22 at 11:34

0

Change cv2.VideoCapture(1) to cap = cv2.VideoCapture(0)

edited Jan 07 '22 at 11:34

Shunya

2,344
4
16
28

answered Jan 07 '22 at 09:26

md hasanuzzaman

1
1

1

While this code snippet may solve the problem, it doesn't explain why or how it answers the question. Please [include an explanation for your code](//meta.stackexchange.com/q/114762/269535), as that really helps to improve the quality of your post. Remember that you are answering the question for readers in the future, and those people might not know the reasons for your code suggestion. – Luca Kiebel Jan 07 '22 at 12:21

"error: (-2:Unspecified error) Can't create layer" shows while using net.detect in python.how to fix this type problem?

6 Answers6