Node.js GM minify() Function

The minify() function is an inbuilt function in the GraphicsMagick library which is used to minify the image. The function returns the true value of success.

 Syntax:

minify( factor )

Parameters: This function accepts a single parameter as mentioned above and described below:

  • factor: This parameter is used to specify the factor by which the image needs to be minified.

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 borderColor() function
// and set border color to green
.borderColor('Green')
 
// Invoke resize function
.border(10, 30)
 
// Invoke minify function
.minify(3)
 
// Process and Write the image
.write("minify1.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, "w3wiki!")
 
// Invoke borderColor() function
// and set border color to green
.borderColor("Green")
 
// Invoke border function
.border(62, 32)
 
// Invoke minify() function
.minify(2)
 
// Process and write the image
.write("minify2.png", function (err) {
    if (!err) console.log('done');
});


Output:

 

 Reference:

  • http://www.graphicsmagick.org/GraphicsMagick.html
  • https://www.npmjs.com/package/gm