Doubt regarding raspberry pi model

[ghost]

I have to use the webcam now and raspberry pi later, what else changes do I need to make in the code for both.

[ghost]

Hello ,I m getting error in line 125 of object_detection.py saying "local varibale 'distance ' referred before assignment" What should I do to solve this error bcz distance vairable is already used to calculate the distance in inches?

[paul-pias]

Maybe the issue is regarding global and local scope. Anyway, you can declare the variable at the model initialization as self.distance = 0.0 in line 80 of object_detection.py and replace the distance variable at line 115 and 125 with self.distance as follows.

self.distance = (2 3.14 180) / (w + h 360) 1000 + 3

frame = cv2.putText(frame, str("{:.2f} Inches".format(self.distance)), (x,y), cv2.FONT_HERSHEY_DUPLEX, 0.6, (0,0,255), 1, cv2.LINE_AA)

I hope, it will resolve your problem.

[ghost]

I tried doing it.But then the same problem arises for the vairable 'x' (in the same line)

[paul-pias]

May I know which IDE you are using to edit the code. Did you change anything in the code or you are running as it is? Kindly only download the object_detection.py again and try adding distance=0.0 in line 30.

[ghost]

I am using spyder (annacond3.7). I had downloaded the entire zip file and tried running object_detection.py .After doing this the error of distance occured.Replaced distance with self.distance and then the error of x occured. How would the look output look like?Do you have any set of outputs?Because when I replaced x and y variables the same way(self.x and self.y) webcam opened up but the distance wasnt shown anywhere

[paul-pias]

The output will look like this. https://bit.ly/3f5puYq And I updated the object_detection.py as there were few variables sharing the same name which was causing local/global scope declaration issues. Check if it works for you now.

[ghost]

There is no as such error now .Thanks for it.But when tried running the object_detection.py file it shows only the time elapsed and aprrxo FPS and nothing else.Neither showing the distance of object from camera..Can u please help me with this?

[paul-pias]

Kindly print your necessary variable according to your need.

[paul-pias]

These are basic programming questions. Why would you print cv2.puttext? cv2.puttext is not a statement, it's a method/ function, you can see this for reference. However, you can print the distance variable inside the write method. Anyway, I think you can debug the code line by line for a better understanding. Thank you.