README.md

hand_ai

A program which can be implemented in online classes, to detect when a student is raising their hand.

How it was made:

Summary:

This AI model was made in https://teachablemachine.withgoogle.com/ and then it was exported into a .h5 file and then using CV2 it takes a photo using your webcam. It saves it and then analyses it, prints what it thinks it is and deletes the photo.

AI specifications:

V1.00 has been trained on:

50 Epochs
Batch size : 16
Learning rate : 0.001

V1.50 has been trained on:

100 Epochs (for better performance)
Batch size : 16
Learning rate : 0.001

Libraries:

tensorflow
Pillow
numpy
opencv-python

Credit

If you want to use this (for your own program not just for having a look at it or running it) for something, open a issue describing what you want to use it for and I will review it.

Installation

Install all the needed packages by using

pip install requiremens.txt

in the folder in which requirements.txt is located in.

Usage

(It takes some time to load and initialize and this has been trained on me so it may not work for you)

Try to have a plain white background and a lightly lit place.

Troubleshooting

If you get a error like this:

    cv2.imwrite("cv.jpg", image)
cv2.error: OpenCV(4.3.0) C:\opencv\modules\imgcodecs\src\loadsave.cpp:738: error: (-215:Assertion failed) !_img.empty() in function 'cv::imwrite'

Try running the program a few more times, and if that doesn't work open a issue with a bug label.

Why isn't this in my_python_scripts?

I thought that this is a little bigger, and its not really a script and it's a thing on it's own, so I thought it deserves a repository of it's own.

I dont have Python !

There's a easier way to view the Model than python, you can also have a look at this link :

https://teachablemachine.withgoogle.com/models/8AXz2b2O1/

Thanks for having a look at this,

By Sahal Mulki