Node.js GM raise() Function

Last Updated : 29 Mar, 2023

The raise() function is an inbuilt function in the GraphicsMagick library which is used to lighten or darken image edges. This will create a 3-D effect. The function returns the true value of success.

Syntax:

raise( width, height )

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

width: This parameter is used to specify the width of the effect.
weight: This parameter is used to specify the height of the effect.

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 quality function with
// average parameter
.raise(30, 60)
 
// Process and Write the image
.write("raise1.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 raise function with 200, 75
.raise(200, 75)
 
// Process and write the image 
.write("raise2.png";, function (err) {
      if (!err) console.log('done');
});