d3.facedetection
v3.0.3
Published
Face Detection for SVG, HTML, Canvas and Videos
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d3.js Face Detection Plugin
A d3.js plugin to detect faces on images (both HTML and SVG), videos and canvases to get their coordinates.
Importante note: This plugin uses an algorithm by Liu Liu.
This is a fork of the very popular jquery.facedetection by jaysalvat
Get started
Download the plugin with the method of your choice.
- Download the last release manually
- Or install it with Bower.
bower install d3.facedetection
- Or install it with NPM.
npm install d3.facedetection
Include d3 and the plugin.
<script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3.min.js"></script>
<script src="path/to/dist/d3.facedetection.min.js"></script>
Set a picture with some faces in your HTML (or SVG) page.
<svg height="350px" width="620px" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink= "http://www.w3.org/1999/xlink">
<image id="picture" xlink:href="picture.jpg" x="0" y="0" width="620px" height="350px"></image>
</svg>
Apply the plugin to this image and get the face coordinates.
<script>
d3.select('#picture').faceDetection({
complete: function (faces) {
console.log(faces);
}
});
</script>
Results
Returns an array of found faces object:
- x — Y coord of the face in the picture
- y — Y coord of the face in the picture
- width — Width of the face
- height — Height of the face
- positionX — X position relative to the document
- positionY — Y position relative to the document
- offsetX — X position relative to the offset parent
- offsetY — Y position relative to the offset parent
- scaleX — Ratio between original image width and displayed width
- scaleY — Ratio between original image height and displayed height
- confidence — Level of confidence
Settings
- interval — Interval (default 4)
- minNeighbors — Minimum neighbors threshold which sets the cutoff level for discarding rectangle groups as face (default 1)
- confidence — Minimum confidence (default null)
- async — Async mode if Worker available (default false). The async mode uses Workers and needs the script to be on the same domain.
- grayscale — Convert to grayscale before processing (default true)
- complete — Callback function trigged after the detection is completed
complete: function (faces) {
// ...
}
- error — Callback function trigged on errors
error: function (code, message) {
// ...
}