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Node.js GM scale() Function

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  • Last Updated : 08 Oct, 2021
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The crop() function is an inbuilt function in the GraphicsMagick library which is used to scale the image. The function returns the true value on success.

Syntax:

crop(width, height)

Parameters: This function accepts two parameters as mentioned above and described below:

  • width: This parameter is used to specify the width from which the image is to be scaled.
  • height: This parameter is used to specify the height from which the image is to be scaled.

Return Value: This function returns the GraphicsMagick object.

Example 1:




// Include gm library
var gm = require('gm');
  
// Import the image
gm('1.png')
  
// Invoke scale function
.scale(130, 230)
  
// Process and Write the image
.write("scale1.png", function (err) {
  if (!err) console.log('done');
});

Output:

Example 2:




// Include gm library
var 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 gaussian function
.scale(300, 200)
  
// Process and Write the image
.write("scale2.png", function (err) {
  if (!err) console.log('done');
});

Output:

Reference:


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