Prepare your dataset and label them in YOLO format using LabelImg. Once done, zip all the images and their corresponding label files as images.zip.

Create a folder named yolov3 on Google Drive and upload the images.zip file inside it. The directory structure should look something like the following:

Clone the repository and upload the YOLOv3_Custom_Object_Detection.ipynb notebook on Google Colab.

Run the cells one-by-one by following instructions as stated in the notebook. For detailed explanation, refer the following document.

Once the training is completed, download the following files from the yolov3 folder saved on Google Drive, onto your local machine.

• yolov3_training_last.weights
• yolov3_testing.cfg
• classes.txt

Copy the downloaded files and save them inside the repository you had cloned on your local machine.

Create a new folder named test_images inside the repository and save some test images inside it which you'd like to test the model on.

Open the Object_Detection.py file inside the repository and edit Line 17 by replacing <your_test_image> with the name of the image file you want to the test.

Run the command: python Object_Detection.py.