What is Node.js GM raise() Function?

In this article, we will learn Node.js GM raise() Function,This free Node.js tutorial for complete beginners will help you learn Node.js from scratch.

Node.js GM raise() Function

Q: How to use Node.js GM raise() Function in Node.js?

The raise() function is an inbuilt function in the GraphicsMagick library which is used to lighten or darken image edges

Node.js GM write() Function

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, "w3wiki!")
 
// Invoke raise function with 200, 75
.raise(200, 75)
 
// Process and write the image 
.write("raise2.png";, function (err) {
      if (!err) console.log('done');
});