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photo-collage

Combines several images into a photo collage.

Example

Source files

Source file 1 Source file 2 Source file 3 Source file 4 Source file 5 Source file 6

Result

Result

Installation

npm install --save photo-collage

This library depends on node-canvas, which may require additional setup. See their installation page for details.

Usage

The following example creates a 2x3 collage from a variety of image sources.

const createCollage = require("photo-collage");

const options = {
  sources: [
    imageBufferObject, // source can be a buffer of jpg/png data
    canvasObject, // source can be a canvas object
    "http://myurl.com/image.jpg", // source can be a url string
    "https://myurl.com/image.jpg", // https/ftp is ok too.
    "./localfile.png", // source can be a relative file path
    "~/photos/file.png" // source can be an absolute file path
  ],
  width: 3, // number of images per row
  height: 2, // number of images per column
  imageWidth: 350, // width of each image
  imageHeight: 250, // height of each image
  // backgroundColor: "#cccccc", // optional, defaults to #eeeeee.
  spacing: 2, // optional: pixels between each image
  lines: [
    {font: "", color: "", text: "Sometimes we want to find out when a single one time event has"},
    {font: "", color: "", text: "Sometimes we want to find out when a single one time event has"},
    {font: "", color: "", text: "Sometimes we want to find out when a single one time event has"},
    {font: "", color: "", text: "Sometimes we want to find out when a single one time event has"},
    {font: "", color: "", text: "Sometimes we want to find out when a single one time event has"},
  ],
  //text: "Sometimes we want to find out when a single one time event has finished. For example - a stream is done. For this we can use new Promise. Note that this option should be considered only if automatic conversion isn't possible.Note that promises model a single value through time, they only resolve once - so while they're a good fit for a single event, they are not recommended for multiple event APIs."
  //textStyle: {color: "#fff", fontSize: 20, font: "Arial", height: 300}
  // we can use either lines or text (text will be warped)
};

createCollage(options)
  .then((canvas) => {
    const src = canvas.jpegStream();
    const dest = fs.createWriteStream("myFile");
    src.pipe(dest);
  });

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Turns an array of images into a photo mosaic

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