The resize() method of p5.Image in p5.js is used to resize the image to the given width and height. The image can be scaled proportionally by using 0 as one of the values of the width and height.
Syntax:
resize( width, height )
Parameters: This function accepts two parameters as mentioned above and described below.
- width: It is a number that specifies the width of the resized image.
- height: It is a number that specifies the height of the resized image.
The examples below illustrate the resize() method in p5.js:
Example 1:
Javascript
function preload() { img_orig = loadImage("sample-image.png"); } function setup() { createCanvas(500, 400); textSize(20); heightSlider = createSlider(0, 500, 200); heightSlider.position(30, 300); widthSlider = createSlider(0, 500, 400); widthSlider.position(30, 340); } function draw() { clear(); text("Move the sliders to resize the image", 20, 20); image(img_orig, 20, 40); new_height = heightSlider.value(); new_width = widthSlider.value(); img_orig.resize(new_width, new_height); } |
Output:
Example 2:
Javascript
function preload() { img_orig = loadImage("sample-image.png"); } function setup() { createCanvas(500, 400); textSize(20); sizeSlider = createSlider(0, 500, 250); sizeSlider.position(30, 240); } function draw() { clear(); text("Move the slider to resize " + "the image proportionally", 20, 20); image(img_orig, 20, 40); new_size = sizeSlider.value(); // Setting one of the values as 0, // for proportional resizing img_orig.resize(new_size, 0); } |
Output:
Online editor: https://editor.p5js.org/
Environment Setup: https://www.neveropen.co.za/p5-js-soundfile-object-installation-and-methods/
Reference: https://p5js.org/reference/#/p5.Image/resize
