Node.js GM sepia()用法及代码示例

// Include gm library
const gm = require('gm');
// Import the image
gm('1.png')
// Invoke sepia function
.sepia()
// Process and Write the image
.write("sepia1.png", function (err) {
      if (!err) console.log('done');
});

// 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 sepia function
.sepia()
// Process and Write the image
.write("sepia2.png", function (err) {
     if (!err) console.log('done');
});