Open In App

Nodejs | GM solarize() Function

Improve
Improve
Improve
Like Article
Like
Save Article
Save
Share
Report issue
Report

The solarize() function is an inbuilt function in the GraphicsMagick library which is used to negate all pixels above the threshold level. The function returns the true value of success.

Syntax: 

solarize(thresholdLevel)  

Parameters: This function accepts a single parameter thresholdlevel which is used to specify the threshold level between 0 to 100.

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 solarize function
.solarize(12)
 
// Process and Write the image
.write("solarize1.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 solarize function
.solarize(3)
 
// Process and Write the image
.write("solarize2.png", function (err) {
    if (!err) console.log('done');
});


Output: 

Reference: 



Last Updated : 03 Apr, 2023
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads