Nodejs | GM crop() Function

The crop() function is an inbuilt function in the GraphicsMagick library which is used to remove the unwanted areas of the image by specifying the coordinates. The function returns the true value on success.

Syntax:

crop(width, height, x, y, percentage)

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

  • width: This parameter is used to specify the width from which the image is to be crop.
  • height: This parameter is used to specify the height from which the image is to be crop.
  • x: This parameter is used to specify the width by which the image is to be crop.
  • y: This parameter is used to specify the width by which the image is to be crop.
  • percentage: This parameter is used to specify the boolean value if true then all the previously mentioned value are considered into be percentage else in pixels.

Return Value: This function returns the GraphicsMagick object.

Example 1:



filter_none

edit
close

play_arrow

link
brightness_4
code

// Include gm library
var gm = require('gm');
  
// Import the image
gm('1.png')
  
// Invoke crop function
.crop(50, 50, 12, 6, true)
  
// Process and Write the image
.write("crop1.png", function (err) {
  if (!err) console.log('done');
});

chevron_right


Output:

Example 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Include gm library
var 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 gaussian function
.crop(70, 40, 10, 10, true)
  
// Process and Write the image
.write("crop2.png", function (err) {
  if (!err) console.log('done');
});

chevron_right


Output:

Reference:




My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.