The green() function in p5.js is used to extract the green value from a color or pixel array.
Syntax:
green(c)
Parameters: This function accepts single parameter c which stores the p5.Color object, color components, or CSS color.
Below programs illustrate the green() function in p5.js:
Example 1: This example uses green() function to extract the green value from a color or pixel array.
function setup() {           // Create Canvas of size 300*80     createCanvas(300, 80); }   function draw() {           // Set background color     background(220);           // Initialize the parameter     let c = color(0, 126, 255, 102);           // Extract the green value     let y = green(c);           // Set font size     textSize(16);           // Set font color     fill(color( 'red' ));           // Display result     text( "Green Value is : " + y, 50, 30); } |
Output:
Example 2: This example uses green() function to extract green value and fill it to the rectangle.
function setup() {         // Create Canvas of size 300*80     createCanvas(160, 180); }   function draw() {           // Set the background color     background(220);           // Initialize the parameter     let c = color(0, 126, 100, 34);           // Sets 'value' to 126     let value = green(c);       // Fill the color     fill(0, value, 0);           // Create rectangle     rect(50, 15, 35, 70);           // Display result     text( "Value of green is : " + value, 22, 110); } |
Output:
Reference: https://p5js.org/reference/#/p5/green