Detecting simple objects using Opencv

Description

Here is our project for the Digital Image Processing course:

• Amazing simple object detection based on its color(in this case objects are Rubiks, Oranges, pill bottles)
• We also provide tools such as getting an object's color and picking a color in the HSV color space

KeyPoint

1. Steps involved:

i.Detect the object in the real time.

ii. Track the object as it moves around in real time. Draw a rectangle around it.

2. Assumptions:

1. There is an object in real time.

2. The object is the largest color object in real time.

3. We can specify the desired size of the rectangle of the object's boundary.

4. HSV color space is used to detect the object. Hence we convert the input RGB image to HSV color space.

5. The script is suitable for real-time tracking as it has an excellent frame rate (>32 FPS).

6. The object can be partially occluded and our script will still successfully track the ball.

7. In addition, the tools support getting the color limit of the object.

Requirements: (with versions we tested on)

• python(3.11.1)

• opencv(4.7.0)

• numpy(1.24.2)

Installation

To run this project, you will need to have Python and OpenCV installed on your computer. You can install OpenCV using the following command:

pip install opencv-python 
pip install numpy

Usage

To use this project, simply run the following command:

python detect_object.py

Or if u want to use some tools that we provided, then:

python "NameOfToolsFile.py"

Result

The result is great. Some objects are successfully detected. Also if the object loses the frame, we catch it later when it comes into the frame.

Oranges_detection.mp4

pill.bottles_detection.mp4

rubik_detection.mp4

The limitations

1. There are certain objects that we can't detect because their color is quite mixed.

2. Need to update the script if you want to track an object of a different color

3. In order to detect the object with the color we want, we need to have high-quality input as well as get the correct range of that color in the HSV color space.

Contact

WuangChin - https://www.facebook.com/wangchinn.t - tachien2003@gmail.com

Acknowledgements

This project was inspired by Tutorial on Detecting Color using OpenCV and Python