Cloudinary Blog

Adding borders to images

Graphic designers often contemplate whether to add borders to their website elements. The decision of whether to add borders around frames, buttons and text elements really depends on the feeling the designer is trying to convey through the design. 
 
In this blog post we wanted to tell you about a new cloud-based transformation available through Cloudinary - adding borders to images. Yes, you can use CSS3 or image masks to simulate borders around images, but the first is supported only on modern browsers and the latter clutters the HTML. In addition, if you plan on embedding images in emails or documents you can pretty much say goodbye to borders (certainly for images with rounded corners). For such cases, you can use Cloudinary's extremely simple image transformation API to add borders directly to the original image.
 
Consider the following photo. It was uploaded to Cloudinary using 'autumn_leaves' as its public ID:
 
 
Adding a border around the image is straightforward. Simply specify the 'border' parameter ('bo' for URLs) using a CSS-like format. In the following example '4px_solid_black' means a 4 pixels wide black border.
 
 
 
 
Same example in Ruby on Rails:
<% cl_image_tag("autumn_leaves.jpg", :width => 0.15, :crop => :scale, 
                :border => { :width => 4, :color => 'black' }) %>
 
The border's color component also accepts RGB format. The following example rounds the corners of the image using the 'radius' parameter ('r' for URLs) and adds a 6 pixels solid green border ('#00390b').
 
 
 
Same example in PHP:
<?php echo cl_image_tag("autumn_leaves.jpg", array("width" => 0.15, "crop" => "scale", 
       "radius" => 20, "border" => array("width" => 6, "color" => "#00390b"))) ?>
 
Cloudinary also supports adding semi-transparent borders. This is accomplished using the RGBA color format. The Alpha hex value ranges between 00 (fully transparent), to FF (opaque). The following example generates a semi transparent 10 pixels wide green border. We also use Cloudinary's chained transformations to make the image elliptic ('max' radius), rotate the image by 5 degrees and add an underlay blue background image (while resizing it and increasing its brightness).
 
 
 
Same example in Django:
import cloudinary
img = cloudinary.CloudinaryImage("autumn_leaves.jpg")
img.image(transformation=[
          dict(width=0.15, crop='scale', radius='max', 
               border=dict(width=10, color='#00390b60')), 
          dict(angle=5), 
          dict(underlay='site_bg', width=250, height=200, effects='brightness:50')])
And one last example - the following URL generates an image based on a Facebook profile picture that was automatically fetched by Cloudinary. The image is resized and rounded, and a black border is added. We then use an overlay to add Cloudinary's logo with a semi-transparent wide border. As with all of the Cloudinary managed images, the resulting image is persistently stored in the Cloud and then delivered and cached through a fast CDN.
 
 
 
By the way, you can also add the border as an incoming transformation so the original image is stored in the cloud already with the border. Here's such an incoming transformation, this time in Node.js:
cloudinary.image("itail.jpg", { type: 'facebook', transformation: [
                 { crop: 'fill', width: 150, height: 180, radius: 10, 
                   border: { width: 2, color: 'black'}},
                 { overlay: 'cloudinary_logo_white', width: 90, 
                   gravity: 'south_east', radius: 5, y: 7, x: 7, 
                   border: { width: 6, color: '#afcee990'}}]})

Summary

If you are a regular reader of our blog, you know that Cloudinary keeps enhancing on various fronts. One of these fronts is our ever increasing set of image manipulation capabilities. In this blog we introduced a cool new enhancement that you might find useful. We have more in our pipeline. If you want to see a new image manipulation capability added to Cloudinary, just drop us a line.

Recent Blog Posts

React.js Tutorial: How to develop a React library

Developing a library requires a different approach from developing an application. You must consider the use of the library in someone else’s application and design for it. React is well suited for this purpose. And if the library you are creating is an adapter to another library, you can dynamically generate the component's properties definition to ensure they are forward compatible. There is however more than one way to achieve the same goal, with some conventions to follow and others to cautiously not follow. In particular, I chose to use the context function even though it is an experimental feature because it is useful when you don’t know, or can’t dictate, the way your library's components will be utilized.

Read more
Learn about AdonisJs and how to set up a CMS with it

Even though Node is fun, easy and cheap to work with, we spend a lot of time writing boilerplate codes because structure and organization is missing.

What happened to Convention Over Configuration?

While Node is simple, it requires you to make a lot of decisions, which ultimately causes confusion because it leaves you with several options. Languages like PHP, Ruby, C# and Python have one or more Molde-View-Controller (MVC) frameworks, such as Laravel, Rails, ASP.Net and Django. These help developers to achieve structure and write maintainable code with these languages. That was not the case for Node until AdonisJs was introduced.

Read more
Cloud-based image filter transformations for developers

Every picture has a story to tell. But the story it tells can change when you change the color tone, saturation, contrast, or other elements of a photo.

A few years ago, post-processing a digital image generally required a high level of skill and expensive software such as PhotoShop. But in recent years, popular photo sharing apps such as Instagram, Flickr, and Snapchat started offering built-in filters. Professionals take advantage of filters to make subtle corrections or adjustments. Casual users often apply more prominent filters that add their own unique touch or just make their images more fun.

Read more
Optimized media delivery with multi-CDN solutions
This article originally appeared on Venture Beat Magazine and is reprinted with permission.
 
As we all know, content that takes forever to load will increase your site’s bounce rates, decrease your conversions, and undeniably scar your bottom line. And by “forever” I mean more than a few seconds. A recent study by KISS Metrics found that page abandonment rates increase drastically after a load time of just four seconds or more.
Read more