Cloudinary Cookbook recipes about Face-detection

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Custom shapes cropping

You can crop an image based on any custom shape. Do this by having your own custom image as a mask for cropping, setting the overlay parameter as your mask image's public ID and setting the flags parameter to cutter (in URLs: l_<mask_image>,fl_cutter).

Original

Custom shaped

Semi-transparency

URL Ruby PHP Python Node.js Java JS jQuery React Angular .Net Android iOS All

URL:

https://res.cloudinary.com/demo/image/upload/w_173,h_200,c_fill/l_hexagon_sample,fl_cutter/pasta.png

Ruby:

cl_image_tag("pasta.png", :transformation=>[
  {:width=>173, :height=>200, :crop=>"fill"},
  {:overlay=>"hexagon_sample", :flags=>"cutter"}
  ])

PHP:

cl_image_tag("pasta.png", array("transformation"=>array(
  array("width"=>173, "height"=>200, "crop"=>"fill"),
  array("overlay"=>"hexagon_sample", "flags"=>"cutter")
  )))

Python:

CloudinaryImage("pasta.png").image(transformation=[
  {"width": 173, "height": 200, "crop": "fill"},
  {"overlay": "hexagon_sample", "flags": "cutter"}
  ])

Node.js:

cloudinary.image("pasta.png", {transformation: [
  {width: 173, height: 200, crop: "fill"},
  {overlay: "hexagon_sample", flags: "cutter"}
  ]})

Java:

cloudinary.url().transformation(new Transformation()
  .width(173).height(200).crop("fill").chain()
  .overlay("hexagon_sample").flags("cutter")).imageTag("pasta.png");

JS:

cloudinary.imageTag('pasta.png', {transformation: [
  {width: 173, height: 200, crop: "fill"},
  {overlay: "hexagon_sample", flags: "cutter"}
  ]}).toHtml();

jQuery:

$.cloudinary.image("pasta.png", {transformation: [
  {width: 173, height: 200, crop: "fill"},
  {overlay: "hexagon_sample", flags: "cutter"}
  ]})

React:

<Image publicId="pasta.png" >
  <Transformation width="173" height="200" crop="fill" />
  <Transformation overlay="hexagon_sample" flags="cutter" />
</Image>

Angular:

<cl-image public-id="pasta.png" >
  <cl-transformation width="173" height="200" crop="fill">
  </cl-transformation>
  <cl-transformation overlay="hexagon_sample" flags="cutter">
  </cl-transformation>
</cl-image>

.Net:

cloudinary.Api.UrlImgUp.Transform(new Transformation()
  .Width(173).Height(200).Crop("fill").Chain()
  .Overlay("hexagon_sample").Flags("cutter")).BuildImageTag("pasta.png")

Android:

MediaManager.get().url().transformation(new Transformation()
  .width(173).height(200).crop("fill").chain()
  .overlay("hexagon_sample").flags("cutter")).generate("pasta.png");

iOS:

imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation()
  .setWidth(173).setHeight(200).setCrop("fill").chain()
  .setOverlay("hexagon_sample").setFlags("cutter")).generate("pasta.png")!, cloudinary: cloudinary)

by Itay Taragano Jun 11, 2014

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Overlay an image over detected faces

Overlay another image of your choice on top of the faces which are automatically detected in your image. This is done by setting the overlay parameter (l in URLs) to the overlay image's public ID while setting the gravity parameter to faces (g_faces in URLs).

Original

Faces overlay

Funny overlay

URL Ruby PHP Python Node.js Java JS jQuery React Angular .Net Android iOS All

URL:

https://res.cloudinary.com/demo/image/fetch/l_badge,g_faces,w_30/http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg

Ruby:

cl_image_tag("http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg", :overlay=>"badge", :gravity=>"faces", :width=>30, :type=>"fetch")

PHP:

cl_image_tag("http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg", array("overlay"=>"badge", "gravity"=>"faces", "width"=>30, "type"=>"fetch"))

Python:

CloudinaryImage("http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg").image(overlay="badge", gravity="faces", width=30, type="fetch")

Node.js:

cloudinary.image("http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg", {overlay: "badge", gravity: "faces", width: 30, type: "fetch"})

Java:

cloudinary.url().transformation(new Transformation().overlay("badge").gravity("faces").width(30)).type("fetch").imageTag("http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg");

JS:

cloudinary.imageTag('http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg', {overlay: "badge", gravity: "faces", width: 30, type: "fetch"}).toHtml();

jQuery:

$.cloudinary.image("http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg", {overlay: "badge", gravity: "faces", width: 30, type: "fetch"})

React:

<Image publicId="http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg" type="fetch">
  <Transformation overlay="badge" gravity="faces" width="30" />
</Image>

Angular:

<cl-image public-id="http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg" type="fetch">
  <cl-transformation overlay="badge" gravity="faces" width="30">
  </cl-transformation>
</cl-image>

.Net:

cloudinary.Api.UrlImgUp.Transform(new Transformation().Overlay("badge").Gravity("faces").Width(30)).Type("fetch").BuildImageTag("http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg")

Android:

MediaManager.get().url().transformation(new Transformation().overlay("badge").gravity("faces").width(30)).type("fetch").generate("http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg");

iOS:

imageView.cldSetImage(cloudinary.createUrl().setType( "fetch").setTransformation(CLDTransformation().setOverlay("badge").setGravity("faces").setWidth(30)).generate("http://upload.wikimedia.org/wikipedia/commons/4/45/Spain_national_football_team_Euro_2012_final.jpg")!, cloudinary: cloudinary)

by Itay Taragano Jul 19, 2015

Tags:

Blur or pixelate faces

Hide faces in your images by telling Cloudinary to either blur or automatically pixelate the detected faces. This is done by setting the effect parameter to either blur_faces or pixelate_faces (e_blur_faces or e_pixelate_faces in URLs). The level of blurring and the size of the pixel squares can customized.

Original

Blur faces

Pixelate faces

URL Ruby PHP Python Node.js Java JS jQuery React Angular .Net Android iOS All

URL:

https://res.cloudinary.com/demo/image/upload/e_blur_faces/young_couple.jpg

Ruby:

cl_image_tag("young_couple.jpg", :effect=>"blur_faces")

PHP:

cl_image_tag("young_couple.jpg", array("effect"=>"blur_faces"))

Python:

CloudinaryImage("young_couple.jpg").image(effect="blur_faces")

Node.js:

cloudinary.image("young_couple.jpg", {effect: "blur_faces"})

Java:

cloudinary.url().transformation(new Transformation().effect("blur_faces")).imageTag("young_couple.jpg");

JS:

cloudinary.imageTag('young_couple.jpg', {effect: "blur_faces"}).toHtml();

jQuery:

$.cloudinary.image("young_couple.jpg", {effect: "blur_faces"})

React:

<Image publicId="young_couple.jpg" >
  <Transformation effect="blur_faces" />
</Image>

Angular:

<cl-image public-id="young_couple.jpg" >
  <cl-transformation effect="blur_faces">
  </cl-transformation>
</cl-image>

.Net:

cloudinary.Api.UrlImgUp.Transform(new Transformation().Effect("blur_faces")).BuildImageTag("young_couple.jpg")

Android:

MediaManager.get().url().transformation(new Transformation().effect("blur_faces")).generate("young_couple.jpg");

iOS:

imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation().setEffect("blur_faces")).generate("young_couple.jpg")!, cloudinary: cloudinary)

by Itay Taragano Jul 19, 2015

Tags:

Face detection-based image cropping

Crop an image based on an automatically detected face or faces by specifying the width and height (w and h in URLs), setting the gravity parameter to face or faces (g_face or g_faces in URLs), then choose the crop mode most suitable to your requirements.

Original

Face detection

Faces detection

URL Ruby PHP Python Node.js Java JS jQuery React Angular .Net Android iOS All

URL:

https://res.cloudinary.com/demo/image/upload/w_100,h_100,c_thumb,g_face/couple.jpg

Ruby:

cl_image_tag("couple.jpg", :width=>100, :height=>100, :gravity=>"face", :crop=>"thumb")

PHP:

cl_image_tag("couple.jpg", array("width"=>100, "height"=>100, "gravity"=>"face", "crop"=>"thumb"))

Python:

CloudinaryImage("couple.jpg").image(width=100, height=100, gravity="face", crop="thumb")

Node.js:

cloudinary.image("couple.jpg", {width: 100, height: 100, gravity: "face", crop: "thumb"})

Java:

cloudinary.url().transformation(new Transformation().width(100).height(100).gravity("face").crop("thumb")).imageTag("couple.jpg");

JS:

cloudinary.imageTag('couple.jpg', {width: 100, height: 100, gravity: "face", crop: "thumb"}).toHtml();

jQuery:

$.cloudinary.image("couple.jpg", {width: 100, height: 100, gravity: "face", crop: "thumb"})

React:

<Image publicId="couple.jpg" >
  <Transformation width="100" height="100" gravity="face" crop="thumb" />
</Image>

Angular:

<cl-image public-id="couple.jpg" >
  <cl-transformation width="100" height="100" gravity="face" crop="thumb">
  </cl-transformation>
</cl-image>

.Net:

cloudinary.Api.UrlImgUp.Transform(new Transformation().Width(100).Height(100).Gravity("face").Crop("thumb")).BuildImageTag("couple.jpg")

Android:

MediaManager.get().url().transformation(new Transformation().width(100).height(100).gravity("face").crop("thumb")).generate("couple.jpg");

iOS:

imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation().setWidth(100).setHeight(100).setGravity("face").setCrop("thumb")).generate("couple.jpg")!, cloudinary: cloudinary)

by Itay Taragano Jun 11, 2014

Tags: