Topic: Image halftoning using Gray-level binary fonts transforms an image with L number of gray levels into an image with N perceived gray levels. N matrices are created and for each pixel, the appropriate matrix is copied at the appropriate position of the output image.
Exercise: Create a Python script file and perform the following tasks:
- Import OpenCV and NumPy libraries.
- Create a function that takes as input a grayscale image and a number of halftones and performs image halftoning using gray-level binary fonts. Then, return the halftoned image. You can add any extra parameters you desire.
- Read an image as grayscale.
- Apply image halftoning using gray-level binary fonts to the grayscale image.
- Finally, display the original image alongside the halftoned one.
Instructions and Material for solution: Click Image to download the exercise material.
Help (if needed): Click Pdf to download the exercise help.
Lecture for better understanding: http://icarus.csd.auth.gr/digital-image-processing/
This exercise was developed by C. Georgiadis.
————————————————————————————————————–
For the solutions to the exercises, please contact koroniioanna@csd.auth.gr