Cloudinary Blog

How to pad images with automatic color selection

Auto padding images with content-aware color padding

How you present the content of your website can be just as important as the content itself. The images you display need to conform to the graphic design of your site, and every image needs to fit within a predefined size. Although that may be simple enough to achieve when you are dealing with your own images, the task can be more challenging when displaying images uploaded by your users.

Your users could potentially upload their images in a variety of resolutions and sizes. This means you need to adjust the images on-the-fly to fit within the available space defined by your graphic design. However, for images that are uploaded with a different aspect ratio than the area reserved to display it, a simple scaled resize will result in extra space either above and below the image or on the left and right. It also could affect the spacing of other elements on your page. To make sure you end up with an image that is the right size to fill all of the available space, you will generally need to add padding to the image as well, either using CSS or by manipulating the original image.

Simple image padding

Now the question becomes, how do you add the extra padding to the image so that the end result fits properly and looks professional? We could simply decide that the extra padding added to all the images needs to conform to a specific color, for example: white. You could use CSS for this purpose, but Cloudinary makes this process much easier to accomplish. Cloudinary offers a comprehensive end-to-end solution for all elements of image and media management, enabling web and app developers to invest their full focus on the main purpose of their own site, or app. To add padding in a specific color with Cloudinary, you use one of the padding crop modes together with the background parameter set to the color you want. For example, padding the bottle image with white so that it fits within a height and width of 300 pixels, along with with a black border:

Ruby:
Copy to clipboard
cl_image_tag("bottle.jpg", :transformation=>[
  {:width=>300, :height=>300, :background=>"white", :crop=>"pad"},
  {:border=>"2px_solid_black"}
  ])
PHP:
Copy to clipboard
cl_image_tag("bottle.jpg", array("transformation"=>array(
  array("width"=>300, "height"=>300, "background"=>"white", "crop"=>"pad"),
  array("border"=>"2px_solid_black")
  )))
Python:
Copy to clipboard
CloudinaryImage("bottle.jpg").image(transformation=[
  {'width': 300, 'height': 300, 'background': "white", 'crop': "pad"},
  {'border': "2px_solid_black"}
  ])
Node.js:
Copy to clipboard
cloudinary.image("bottle.jpg", {transformation: [
  {width: 300, height: 300, background: "white", crop: "pad"},
  {border: "2px_solid_black"}
  ]})
Java:
Copy to clipboard
cloudinary.url().transformation(new Transformation()
  .width(300).height(300).background("white").crop("pad").chain()
  .border("2px_solid_black")).imageTag("bottle.jpg");
JS:
Copy to clipboard
cloudinary.imageTag('bottle.jpg', {transformation: [
  {width: 300, height: 300, background: "white", crop: "pad"},
  {border: "2px_solid_black"}
  ]}).toHtml();
jQuery:
Copy to clipboard
$.cloudinary.image("bottle.jpg", {transformation: [
  {width: 300, height: 300, background: "white", crop: "pad"},
  {border: "2px_solid_black"}
  ]})
React:
Copy to clipboard
<Image publicId="bottle.jpg" >
  <Transformation width="300" height="300" background="white" crop="pad" />
  <Transformation border="2px_solid_black" />
</Image>
Vue.js:
Copy to clipboard
<cld-image publicId="bottle.jpg" >
  <cld-transformation width="300" height="300" background="white" crop="pad" />
  <cld-transformation border="2px_solid_black" />
</cld-image>
Angular:
Copy to clipboard
<cl-image public-id="bottle.jpg" >
  <cl-transformation width="300" height="300" background="white" crop="pad">
  </cl-transformation>
  <cl-transformation border="2px_solid_black">
  </cl-transformation>
</cl-image>
.Net:
Copy to clipboard
cloudinary.Api.UrlImgUp.Transform(new Transformation()
  .Width(300).Height(300).Background("white").Crop("pad").Chain()
  .Border("2px_solid_black")).BuildImageTag("bottle.jpg")
Android:
Copy to clipboard
MediaManager.get().url().transformation(new Transformation()
  .width(300).height(300).background("white").crop("pad").chain()
  .border("2px_solid_black")).generate("bottle.jpg");
iOS:
Copy to clipboard
imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation()
  .setWidth(300).setHeight(300).setBackground("white").setCrop("pad").chain()
  .setBorder("2px_solid_black")).generate("bottle.jpg")!, cloudinary: cloudinary)
Image with white padding

Webinar
How to Optimize for Page Load Speed

Automatic color padding

Setting a uniform color for all padding might be a good solution for some of your images, but what if you could automatically set the padding color based on the color of the border pixels in the image? Any padding added would then have the effect of extending the image canvas, and make it appear as if the padded region is actually part of the image itself. Guess what? Cloudinary makes this simple too. All you have to do is set the background parameter to auto (b_auto in URLs). For example, here's the same bottle image as above, but now with automatic color padding:

Ruby:
Copy to clipboard
cl_image_tag("bottle.jpg", :transformation=>[
  {:width=>300, :height=>300, :background=>"auto", :crop=>"pad"},
  {:border=>"2px_solid_black"}
  ])
PHP:
Copy to clipboard
cl_image_tag("bottle.jpg", array("transformation"=>array(
  array("width"=>300, "height"=>300, "background"=>"auto", "crop"=>"pad"),
  array("border"=>"2px_solid_black")
  )))
Python:
Copy to clipboard
CloudinaryImage("bottle.jpg").image(transformation=[
  {'width': 300, 'height': 300, 'background': "auto", 'crop': "pad"},
  {'border': "2px_solid_black"}
  ])
Node.js:
Copy to clipboard
cloudinary.image("bottle.jpg", {transformation: [
  {width: 300, height: 300, background: "auto", crop: "pad"},
  {border: "2px_solid_black"}
  ]})
Java:
Copy to clipboard
cloudinary.url().transformation(new Transformation()
  .width(300).height(300).background("auto").crop("pad").chain()
  .border("2px_solid_black")).imageTag("bottle.jpg");
JS:
Copy to clipboard
cloudinary.imageTag('bottle.jpg', {transformation: [
  {width: 300, height: 300, background: "auto", crop: "pad"},
  {border: "2px_solid_black"}
  ]}).toHtml();
jQuery:
Copy to clipboard
$.cloudinary.image("bottle.jpg", {transformation: [
  {width: 300, height: 300, background: "auto", crop: "pad"},
  {border: "2px_solid_black"}
  ]})
React:
Copy to clipboard
<Image publicId="bottle.jpg" >
  <Transformation width="300" height="300" background="auto" crop="pad" />
  <Transformation border="2px_solid_black" />
</Image>
Vue.js:
Copy to clipboard
<cld-image publicId="bottle.jpg" >
  <cld-transformation width="300" height="300" background="auto" crop="pad" />
  <cld-transformation border="2px_solid_black" />
</cld-image>
Angular:
Copy to clipboard
<cl-image public-id="bottle.jpg" >
  <cl-transformation width="300" height="300" background="auto" crop="pad">
  </cl-transformation>
  <cl-transformation border="2px_solid_black">
  </cl-transformation>
</cl-image>
.Net:
Copy to clipboard
cloudinary.Api.UrlImgUp.Transform(new Transformation()
  .Width(300).Height(300).Background("auto").Crop("pad").Chain()
  .Border("2px_solid_black")).BuildImageTag("bottle.jpg")
Android:
Copy to clipboard
MediaManager.get().url().transformation(new Transformation()
  .width(300).height(300).background("auto").crop("pad").chain()
  .border("2px_solid_black")).generate("bottle.jpg");
iOS:
Copy to clipboard
imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation()
  .setWidth(300).setHeight(300).setBackground("auto").setCrop("pad").chain()
  .setBorder("2px_solid_black")).generate("bottle.jpg")!, cloudinary: cloudinary)
Image with a solid background and automatic color padding

Here's another example that highlights the difference between using a value of black for padding in the left image and auto color padding on the right:

Photograph with a solid background and black padding Photograph with a solid background and automatic color padding

Ruby:
Copy to clipboard
cl_image_tag("white_sweater.jpg", :width=>300, :height=>300, :background=>"auto", :crop=>"pad")
PHP:
Copy to clipboard
cl_image_tag("white_sweater.jpg", array("width"=>300, "height"=>300, "background"=>"auto", "crop"=>"pad"))
Python:
Copy to clipboard
CloudinaryImage("white_sweater.jpg").image(width=300, height=300, background="auto", crop="pad")
Node.js:
Copy to clipboard
cloudinary.image("white_sweater.jpg", {width: 300, height: 300, background: "auto", crop: "pad"})
Java:
Copy to clipboard
cloudinary.url().transformation(new Transformation().width(300).height(300).background("auto").crop("pad")).imageTag("white_sweater.jpg");
JS:
Copy to clipboard
cloudinary.imageTag('white_sweater.jpg', {width: 300, height: 300, background: "auto", crop: "pad"}).toHtml();
jQuery:
Copy to clipboard
$.cloudinary.image("white_sweater.jpg", {width: 300, height: 300, background: "auto", crop: "pad"})
React:
Copy to clipboard
<Image publicId="white_sweater.jpg" >
  <Transformation width="300" height="300" background="auto" crop="pad" />
</Image>
Vue.js:
Copy to clipboard
<cld-image publicId="white_sweater.jpg" >
  <cld-transformation width="300" height="300" background="auto" crop="pad" />
</cld-image>
Angular:
Copy to clipboard
<cl-image public-id="white_sweater.jpg" >
  <cl-transformation width="300" height="300" background="auto" crop="pad">
  </cl-transformation>
</cl-image>
.Net:
Copy to clipboard
cloudinary.Api.UrlImgUp.Transform(new Transformation().Width(300).Height(300).Background("auto").Crop("pad")).BuildImageTag("white_sweater.jpg")
Android:
Copy to clipboard
MediaManager.get().url().transformation(new Transformation().width(300).height(300).background("auto").crop("pad")).generate("white_sweater.jpg");
iOS:
Copy to clipboard
imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation().setWidth(300).setHeight(300).setBackground("auto").setCrop("pad")).generate("white_sweater.jpg")!, cloudinary: cloudinary)

Automatically selecting the padding color is a great solution for images with a solid background color, but it also gives good results on images without a solid background color. For example, take a look at this dog image with automatic color padding:

Ruby:
Copy to clipboard
cl_image_tag("dog.jpg", :width=>300, :height=>300, :background=>"auto", :crop=>"pad")
PHP:
Copy to clipboard
cl_image_tag("dog.jpg", array("width"=>300, "height"=>300, "background"=>"auto", "crop"=>"pad"))
Python:
Copy to clipboard
CloudinaryImage("dog.jpg").image(width=300, height=300, background="auto", crop="pad")
Node.js:
Copy to clipboard
cloudinary.image("dog.jpg", {width: 300, height: 300, background: "auto", crop: "pad"})
Java:
Copy to clipboard
cloudinary.url().transformation(new Transformation().width(300).height(300).background("auto").crop("pad")).imageTag("dog.jpg");
JS:
Copy to clipboard
cloudinary.imageTag('dog.jpg', {width: 300, height: 300, background: "auto", crop: "pad"}).toHtml();
jQuery:
Copy to clipboard
$.cloudinary.image("dog.jpg", {width: 300, height: 300, background: "auto", crop: "pad"})
React:
Copy to clipboard
<Image publicId="dog.jpg" >
  <Transformation width="300" height="300" background="auto" crop="pad" />
</Image>
Vue.js:
Copy to clipboard
<cld-image publicId="dog.jpg" >
  <cld-transformation width="300" height="300" background="auto" crop="pad" />
</cld-image>
Angular:
Copy to clipboard
<cl-image public-id="dog.jpg" >
  <cl-transformation width="300" height="300" background="auto" crop="pad">
  </cl-transformation>
</cl-image>
.Net:
Copy to clipboard
cloudinary.Api.UrlImgUp.Transform(new Transformation().Width(300).Height(300).Background("auto").Crop("pad")).BuildImageTag("dog.jpg")
Android:
Copy to clipboard
MediaManager.get().url().transformation(new Transformation().width(300).height(300).background("auto").crop("pad")).generate("dog.jpg");
iOS:
Copy to clipboard
imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation().setWidth(300).setHeight(300).setBackground("auto").setCrop("pad")).generate("dog.jpg")!, cloudinary: cloudinary)
Image with a spectrum of background colors and automatic color padding

Fade the image into the padding

We can see in the example above that the predominant color has been calculated to be a particular shade of green, resulting in a visually pleasing padded image. The jump between the image and the border may feel somewhat stark, but we can fade the picture into the padding by applying the gradient_fade effect with a value of symmetric_pad (e_gradient_fade:symmetric_pad in URLs). For example, the same dog image as above, but now with the image faded into the padding:

Ruby:
Copy to clipboard
cl_image_tag("dog.jpg", :width=>300, :height=>300, :background=>"auto", :effect=>"gradient_fade:symmetric_pad", :crop=>"pad")
PHP:
Copy to clipboard
cl_image_tag("dog.jpg", array("width"=>300, "height"=>300, "background"=>"auto", "effect"=>"gradient_fade:symmetric_pad", "crop"=>"pad"))
Python:
Copy to clipboard
CloudinaryImage("dog.jpg").image(width=300, height=300, background="auto", effect="gradient_fade:symmetric_pad", crop="pad")
Node.js:
Copy to clipboard
cloudinary.image("dog.jpg", {width: 300, height: 300, background: "auto", effect: "gradient_fade:symmetric_pad", crop: "pad"})
Java:
Copy to clipboard
cloudinary.url().transformation(new Transformation().width(300).height(300).background("auto").effect("gradient_fade:symmetric_pad").crop("pad")).imageTag("dog.jpg");
JS:
Copy to clipboard
cloudinary.imageTag('dog.jpg', {width: 300, height: 300, background: "auto", effect: "gradient_fade:symmetric_pad", crop: "pad"}).toHtml();
jQuery:
Copy to clipboard
$.cloudinary.image("dog.jpg", {width: 300, height: 300, background: "auto", effect: "gradient_fade:symmetric_pad", crop: "pad"})
React:
Copy to clipboard
<Image publicId="dog.jpg" >
  <Transformation width="300" height="300" background="auto" effect="gradient_fade:symmetric_pad" crop="pad" />
</Image>
Vue.js:
Copy to clipboard
<cld-image publicId="dog.jpg" >
  <cld-transformation width="300" height="300" background="auto" effect="gradient_fade:symmetric_pad" crop="pad" />
</cld-image>
Angular:
Copy to clipboard
<cl-image public-id="dog.jpg" >
  <cl-transformation width="300" height="300" background="auto" effect="gradient_fade:symmetric_pad" crop="pad">
  </cl-transformation>
</cl-image>
.Net:
Copy to clipboard
cloudinary.Api.UrlImgUp.Transform(new Transformation().Width(300).Height(300).Background("auto").Effect("gradient_fade:symmetric_pad").Crop("pad")).BuildImageTag("dog.jpg")
Android:
Copy to clipboard
MediaManager.get().url().transformation(new Transformation().width(300).height(300).background("auto").effect("gradient_fade:symmetric_pad").crop("pad")).generate("dog.jpg");
iOS:
Copy to clipboard
imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation().setWidth(300).setHeight(300).setBackground("auto").setEffect("gradient_fade:symmetric_pad").setCrop("pad")).generate("dog.jpg")!, cloudinary: cloudinary)
Image with a gradient fade into automatic color padding

You can also control how much of the image to include in the fading effect by adding the x parameter with a value that indicates the width of the fading region in pixels. For example, the same dog image as above, but now with only a 50 pixel wide gradient fade into the padding:

Ruby:
Copy to clipboard
cl_image_tag("dog.jpg", :width=>300, :height=>300, :background=>"auto", :effect=>"gradient_fade:symmetric_pad", :x=>50, :crop=>"pad")
PHP:
Copy to clipboard
cl_image_tag("dog.jpg", array("width"=>300, "height"=>300, "background"=>"auto", "effect"=>"gradient_fade:symmetric_pad", "x"=>50, "crop"=>"pad"))
Python:
Copy to clipboard
CloudinaryImage("dog.jpg").image(width=300, height=300, background="auto", effect="gradient_fade:symmetric_pad", x=50, crop="pad")
Node.js:
Copy to clipboard
cloudinary.image("dog.jpg", {width: 300, height: 300, background: "auto", effect: "gradient_fade:symmetric_pad", x: 50, crop: "pad"})
Java:
Copy to clipboard
cloudinary.url().transformation(new Transformation().width(300).height(300).background("auto").effect("gradient_fade:symmetric_pad").x(50).crop("pad")).imageTag("dog.jpg");
JS:
Copy to clipboard
cloudinary.imageTag('dog.jpg', {width: 300, height: 300, background: "auto", effect: "gradient_fade:symmetric_pad", x: 50, crop: "pad"}).toHtml();
jQuery:
Copy to clipboard
$.cloudinary.image("dog.jpg", {width: 300, height: 300, background: "auto", effect: "gradient_fade:symmetric_pad", x: 50, crop: "pad"})
React:
Copy to clipboard
<Image publicId="dog.jpg" >
  <Transformation width="300" height="300" background="auto" effect="gradient_fade:symmetric_pad" x="50" crop="pad" />
</Image>
Vue.js:
Copy to clipboard
<cld-image publicId="dog.jpg" >
  <cld-transformation width="300" height="300" background="auto" effect="gradient_fade:symmetric_pad" x="50" crop="pad" />
</cld-image>
Angular:
Copy to clipboard
<cl-image public-id="dog.jpg" >
  <cl-transformation width="300" height="300" background="auto" effect="gradient_fade:symmetric_pad" x="50" crop="pad">
  </cl-transformation>
</cl-image>
.Net:
Copy to clipboard
cloudinary.Api.UrlImgUp.Transform(new Transformation().Width(300).Height(300).Background("auto").Effect("gradient_fade:symmetric_pad").X(50).Crop("pad")).BuildImageTag("dog.jpg")
Android:
Copy to clipboard
MediaManager.get().url().transformation(new Transformation().width(300).height(300).background("auto").effect("gradient_fade:symmetric_pad").x(50).crop("pad")).generate("dog.jpg");
iOS:
Copy to clipboard
imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation().setWidth(300).setHeight(300).setBackground("auto").setEffect("gradient_fade:symmetric_pad").setX(50).setCrop("pad")).generate("dog.jpg")!, cloudinary: cloudinary)
Image with a 50 pixel wide gradient fade into automatic color padding

More padding options

The examples in this article are some of the most frequent uses of padding options, but you can fine tune the way padding is added in a number of other ways. The following examples give a taste of what can be accomplished by tweaking the value of the b_auto parameter:

  • Select the predominant color of the entire image or only the border pixels:
b_auto:border b_auto:border b_auto:predominant b_auto:predominant

Ruby:
Copy to clipboard
cl_image_tag("beach_huts.jpg", :height=>200, :width=>200, :background=>"auto:predominant", :crop=>"pad")
PHP:
Copy to clipboard
cl_image_tag("beach_huts.jpg", array("height"=>200, "width"=>200, "background"=>"auto:predominant", "crop"=>"pad"))
Python:
Copy to clipboard
CloudinaryImage("beach_huts.jpg").image(height=200, width=200, background="auto:predominant", crop="pad")
Node.js:
Copy to clipboard
cloudinary.image("beach_huts.jpg", {height: 200, width: 200, background: "auto:predominant", crop: "pad"})
Java:
Copy to clipboard
cloudinary.url().transformation(new Transformation().height(200).width(200).background("auto:predominant").crop("pad")).imageTag("beach_huts.jpg");
JS:
Copy to clipboard
cloudinary.imageTag('beach_huts.jpg', {height: 200, width: 200, background: "auto:predominant", crop: "pad"}).toHtml();
jQuery:
Copy to clipboard
$.cloudinary.image("beach_huts.jpg", {height: 200, width: 200, background: "auto:predominant", crop: "pad"})
React:
Copy to clipboard
<Image publicId="beach_huts.jpg" >
  <Transformation height="200" width="200" background="auto:predominant" crop="pad" />
</Image>
Vue.js:
Copy to clipboard
<cld-image publicId="beach_huts.jpg" >
  <cld-transformation height="200" width="200" background="auto:predominant" crop="pad" />
</cld-image>
Angular:
Copy to clipboard
<cl-image public-id="beach_huts.jpg" >
  <cl-transformation height="200" width="200" background="auto:predominant" crop="pad">
  </cl-transformation>
</cl-image>
.Net:
Copy to clipboard
cloudinary.Api.UrlImgUp.Transform(new Transformation().Height(200).Width(200).Background("auto:predominant").Crop("pad")).BuildImageTag("beach_huts.jpg")
Android:
Copy to clipboard
MediaManager.get().url().transformation(new Transformation().height(200).width(200).background("auto:predominant").crop("pad")).generate("beach_huts.jpg");
iOS:
Copy to clipboard
imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation().setHeight(200).setWidth(200).setBackground("auto:predominant").setCrop("pad")).generate("beach_huts.jpg")!, cloudinary: cloudinary)

  • Pad with the strongest contrasting color to the predominant color:
b_auto:predominant b_auto:predominant b_auto:predominant_contrast b_auto:predominant_contrast

Ruby:
Copy to clipboard
cl_image_tag("painter_scene.jpg", :height=>300, :width=>300, :background=>"auto:predominant_contrast", :crop=>"pad")
PHP:
Copy to clipboard
cl_image_tag("painter_scene.jpg", array("height"=>300, "width"=>300, "background"=>"auto:predominant_contrast", "crop"=>"pad"))
Python:
Copy to clipboard
CloudinaryImage("painter_scene.jpg").image(height=300, width=300, background="auto:predominant_contrast", crop="pad")
Node.js:
Copy to clipboard
cloudinary.image("painter_scene.jpg", {height: 300, width: 300, background: "auto:predominant_contrast", crop: "pad"})
Java:
Copy to clipboard
cloudinary.url().transformation(new Transformation().height(300).width(300).background("auto:predominant_contrast").crop("pad")).imageTag("painter_scene.jpg");
JS:
Copy to clipboard
cloudinary.imageTag('painter_scene.jpg', {height: 300, width: 300, background: "auto:predominant_contrast", crop: "pad"}).toHtml();
jQuery:
Copy to clipboard
$.cloudinary.image("painter_scene.jpg", {height: 300, width: 300, background: "auto:predominant_contrast", crop: "pad"})
React:
Copy to clipboard
<Image publicId="painter_scene.jpg" >
  <Transformation height="300" width="300" background="auto:predominant_contrast" crop="pad" />
</Image>
Vue.js:
Copy to clipboard
<cld-image publicId="painter_scene.jpg" >
  <cld-transformation height="300" width="300" background="auto:predominant_contrast" crop="pad" />
</cld-image>
Angular:
Copy to clipboard
<cl-image public-id="painter_scene.jpg" >
  <cl-transformation height="300" width="300" background="auto:predominant_contrast" crop="pad">
  </cl-transformation>
</cl-image>
.Net:
Copy to clipboard
cloudinary.Api.UrlImgUp.Transform(new Transformation().Height(300).Width(300).Background("auto:predominant_contrast").Crop("pad")).BuildImageTag("painter_scene.jpg")
Android:
Copy to clipboard
MediaManager.get().url().transformation(new Transformation().height(300).width(300).background("auto:predominant_contrast").crop("pad")).generate("painter_scene.jpg");
iOS:
Copy to clipboard
imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation().setHeight(300).setWidth(300).setBackground("auto:predominant_contrast").setCrop("pad")).generate("painter_scene.jpg")!, cloudinary: cloudinary)

  • Select multiple predominant colors and use a gradient effect to blend them together:
b_auto:predominant_gradient:2 b_auto:predominant_gradient:2 b_auto:predominant_gradient:4 b_auto:predominant_gradient:4

Ruby:
Copy to clipboard
cl_image_tag("phone_wood.jpg", :height=>300, :width=>300, :background=>"auto:predominant_gradient:2", :crop=>"pad")
PHP:
Copy to clipboard
cl_image_tag("phone_wood.jpg", array("height"=>300, "width"=>300, "background"=>"auto:predominant_gradient:2", "crop"=>"pad"))
Python:
Copy to clipboard
CloudinaryImage("phone_wood.jpg").image(height=300, width=300, background="auto:predominant_gradient:2", crop="pad")
Node.js:
Copy to clipboard
cloudinary.image("phone_wood.jpg", {height: 300, width: 300, background: "auto:predominant_gradient:2", crop: "pad"})
Java:
Copy to clipboard
cloudinary.url().transformation(new Transformation().height(300).width(300).background("auto:predominant_gradient:2").crop("pad")).imageTag("phone_wood.jpg");
JS:
Copy to clipboard
cloudinary.imageTag('phone_wood.jpg', {height: 300, width: 300, background: "auto:predominant_gradient:2", crop: "pad"}).toHtml();
jQuery:
Copy to clipboard
$.cloudinary.image("phone_wood.jpg", {height: 300, width: 300, background: "auto:predominant_gradient:2", crop: "pad"})
React:
Copy to clipboard
<Image publicId="phone_wood.jpg" >
  <Transformation height="300" width="300" background="auto:predominant_gradient:2" crop="pad" />
</Image>
Vue.js:
Copy to clipboard
<cld-image publicId="phone_wood.jpg" >
  <cld-transformation height="300" width="300" background="auto:predominant_gradient:2" crop="pad" />
</cld-image>
Angular:
Copy to clipboard
<cl-image public-id="phone_wood.jpg" >
  <cl-transformation height="300" width="300" background="auto:predominant_gradient:2" crop="pad">
  </cl-transformation>
</cl-image>
.Net:
Copy to clipboard
cloudinary.Api.UrlImgUp.Transform(new Transformation().Height(300).Width(300).Background("auto:predominant_gradient:2").Crop("pad")).BuildImageTag("phone_wood.jpg")
Android:
Copy to clipboard
MediaManager.get().url().transformation(new Transformation().height(300).width(300).background("auto:predominant_gradient:2").crop("pad")).generate("phone_wood.jpg");
iOS:
Copy to clipboard
imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation().setHeight(300).setWidth(300).setBackground("auto:predominant_gradient:2").setCrop("pad")).generate("phone_wood.jpg")!, cloudinary: cloudinary)

  • Limit the selected gradient colors to specific values (i.e. provide your own palette). The predominant color is then selected from the closest match in the provided palette:

Ruby:
Copy to clipboard
cl_image_tag("string.jpg", :height=>300, :width=>300, :background=>"auto:predominant_gradient:4:palette_red_orange_brown", :crop=>"pad")
PHP:
Copy to clipboard
cl_image_tag("string.jpg", array("height"=>300, "width"=>300, "background"=>"auto:predominant_gradient:4:palette_red_orange_brown", "crop"=>"pad"))
Python:
Copy to clipboard
CloudinaryImage("string.jpg").image(height=300, width=300, background="auto:predominant_gradient:4:palette_red_orange_brown", crop="pad")
Node.js:
Copy to clipboard
cloudinary.image("string.jpg", {height: 300, width: 300, background: "auto:predominant_gradient:4:palette_red_orange_brown", crop: "pad"})
Java:
Copy to clipboard
cloudinary.url().transformation(new Transformation().height(300).width(300).background("auto:predominant_gradient:4:palette_red_orange_brown").crop("pad")).imageTag("string.jpg");
JS:
Copy to clipboard
cloudinary.imageTag('string.jpg', {height: 300, width: 300, background: "auto:predominant_gradient:4:palette_red_orange_brown", crop: "pad"}).toHtml();
jQuery:
Copy to clipboard
$.cloudinary.image("string.jpg", {height: 300, width: 300, background: "auto:predominant_gradient:4:palette_red_orange_brown", crop: "pad"})
React:
Copy to clipboard
<Image publicId="string.jpg" >
  <Transformation height="300" width="300" background="auto:predominant_gradient:4:palette_red_orange_brown" crop="pad" />
</Image>
Vue.js:
Copy to clipboard
<cld-image publicId="string.jpg" >
  <cld-transformation height="300" width="300" background="auto:predominant_gradient:4:palette_red_orange_brown" crop="pad" />
</cld-image>
Angular:
Copy to clipboard
<cl-image public-id="string.jpg" >
  <cl-transformation height="300" width="300" background="auto:predominant_gradient:4:palette_red_orange_brown" crop="pad">
  </cl-transformation>
</cl-image>
.Net:
Copy to clipboard
cloudinary.Api.UrlImgUp.Transform(new Transformation().Height(300).Width(300).Background("auto:predominant_gradient:4:palette_red_orange_brown").Crop("pad")).BuildImageTag("string.jpg")
Android:
Copy to clipboard
MediaManager.get().url().transformation(new Transformation().height(300).width(300).background("auto:predominant_gradient:4:palette_red_orange_brown").crop("pad")).generate("string.jpg");
iOS:
Copy to clipboard
imageView.cldSetImage(cloudinary.createUrl().setTransformation(CLDTransformation().setHeight(300).setWidth(300).setBackground("auto:predominant_gradient:4:palette_red_orange_brown").setCrop("pad")).generate("string.jpg")!, cloudinary: cloudinary)
b_auto:predominant_gradient:4:palette_red_orange_brown

See the documentation for more information on these values and more details on the various padding options.

Summary

There are many cool things you can do with image padding, and as you've seen, Cloudinary enables you to easily do these enhancements in the cloud using simple, dynamic manipulation parameters and delivery URLs. Context-aware padding is especially useful for making sure your images take up the exact space allocated for the image while looking good.

The context-aware features are available for use with all Cloudinary accounts, including free accounts.

Recent Blog Posts

A New, Simple Tool for Creating Text Overlays for Images

Many Cloudinary users desire a UI for tasks like creating text overlays for images, which they then embed on webpages or download for marketing campaigns. Generating such overlays with the Cloudinary Media Library UI involves a bit of a learning curve, especially if they require multiple fonts or text lines, which even experienced users might find challenging to implement.

Read more
Transitioning JPEG-Based to JPEG XL-Based Images for Web Platforms

When the JPEG codec was being developed in the late 1980s, no standardized, lossy image-compression formats existed. JPEG became ready at exactly the right time in 1992, when the World Wide Web and digital cameras were about to become a thing. The introduction of HTML’s <img> tag in 1995 ensured the recognition of JPEG as the web format—at least for photographs. During the 1990s, digital cameras replaced analog ones and, given the limited memory capacities of that era, JPEG became the standard format for photography, especially for consumer-grade cameras.

Read more

Amplify Your Jamstack With Video

By Alex Patterson
Amplify Your Jamstack With Cloudinary Video

As defined by Amazon Web Services (AWS), Amplify is a set of products and tools with which mobile and front-end web developers can build and deploy AWS-powered, secure, and scalable full-stack apps. Also, you can efficiently configure their back ends, connect them to your app with just a few lines of code, and deploy static web apps in only three steps. Historically, because of their performance issues, managing images and videos is a daunting challenge for developers. Even though you can easily load media to an S3 bucket with AWS Amplify, transforming, compressing, and responsively delivering them is labor intensive and time consuming.

Read more
Cloudinary Helps Move James Hardie’s Experience Online

While COVID has affected most businesses, it has been particularly hard on those that sell products for the physical ‘brick and mortar’ world. One company that literally fits that bill is our Australian customer James Hardie, the largest global manufacturer of fibre cement products used in both domestic and commercial construction. These are materials that its buyers ideally want to see up close, in detail. When customers have questions, they expect personal service.

Read more