asciiVideoExample

Learning Objectives

This example is based on the Processing "ASCII Video" example by Ben Fry and it is designed to demonstrate how to re-interpret live video as text to make it look like some good old ASCII art!

Studying the code behind this example will help you understand:

• How to access the webcam image using ofVideoGrabber
• How to change background video alpha value based on the cursor's x-position
• How to access a string (ours is called asciiCharacters) as a char array
• How to iterate through a movie frame's pixels
• How to use getLightness() (returns the average of its RGB values) to display a different ASCII character

Expected Behavior

When launching this app (if your computer has a webcam), you should see an ASCII art image of the webcam stream.

Instructions for use:

• Try moving your cursor left and right in order to change the video transparency.

Classes used in this example

This example uses the following classes:

• ofVideoGrabber
• ofPixels
• ofTrueTypeFont