Nodejs | GM blur() Function

The blur() function is an inbuilt function in GraphicsMagick library which is used to add blur filter to the image. The function returns the true value on success.

Syntax:

blur( radius, sigma )

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

  • radius: This parameter stores the value of the blur radius.
  • sigma: It is an optional parameter which stores the sigma of the object.

Return Value: This function returns blurred Gmagick image.

Original Image:



Example 1:

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// Include gm library
var gm = require('gm');
  
// Import the image
gm('gfg.png')
  
// Invoke Blur function with blur radius as 12
.blur(10)
  
// Process and Write the image
.write("blur1.png", function (err) {
  if (!err) console.log('done');
});

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Output:




Example 2:













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// Include gm library 


var gm = require('gm'); 


  


// Import the image 


gm('1.png') 


  


// Invoke shear function with  


// xDegrees as 45 and yDegrees as 90 


.rotate("#545651", 78) 


  


// Invoke blur function with radius 


// as 5 and sigma as 5  


.blur(5, 5) 


  


// Process and Write the image 


.write("blur2.png", function (err) { 


    if (!err) console.log('done'); 


}); 



















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Output:




Reference: 






    

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