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Node.js GM spread() Function

Last Updated : 25 Apr, 2025
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The spread() function is an inbuilt function in the GraphicsMagick library which is used to displace image pixels by a random amount. The function returns the true value on success. 

Syntax:

spread(amount)

Parameters: This function accepts a single parameter amount which is used to specify the value by which image pixels should displace. 

Return Value: This function returns the GraphicsMagick object. 

Example 1: 

javascript 
// Include gm library
const gm = require('gm');

// Import the image
gm('1.png')

// Invoke spread function
.spread(3)

// Process and Write the image
.write("spread1.png", function (err) {
      if (!err) console.log('done');
});

Output:

  

Example 2: 

javascript 
// Include gm library
const gm = require('gm');

// Import the image
gm(600, 300, 'white')

// Set the color for the stroke
.stroke("green", 3)

// Set the font 
.font("Helvetica.ttf", 60)

// Call to drawText Function
.drawText(100, 280, "GeeksforGeeks!")

// Invoke borderColor() function
// and set border color to green
.borderColor("Green")

// Invoke border function
.border(62, 32)

// Invoke spread function
.spread(45)

// Process and Write the image
.write("spread2.png", function (err) {
      if (!err) console.log('done');
});

Output:

  

Reference:


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