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p5.js Image resize() Method
  • Last Updated : 29 Sep, 2020

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

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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);
}

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Output:

Example 2:

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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);
}

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Output:

Online editor: https://editor.p5js.org/
Environment Setup: https://www.geeksforgeeks.org/p5-js-soundfile-object-installation-and-methods/
Reference: https://p5js.org/reference/#/p5.Image/resize

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