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Cloudinary — 31 posts

http://cloudinary.com/

This blog post describes a method that combines the advantages of automatic image fetching from existing online locations with the advantages of managing new images directly in the cloud using Cloudinary. This method allows lazy migration to the cloud as well as other powerful origin pulling options. Sample code included for Ruby on Rails.
A new blog post explains how you can benefit from the flexibility of dynamic URLs for cloud-based on-the-fly image fetching and manipulation. Sign the URLs to secure your images and control which images may be accessed and what manipulations will be used. Ruby sample code included.
This blog post describes the advantages of the WebP image format and how you can use Cloudinary to automatically deliver your images through the Akamai CDN in either JPG or WebP according to the your visitors' browsers. Sample code included for Ruby on Rails.
This blog post describes how you can embed profile pictures of Instagram and Google+ users in your web or mobile apps. Profile pictures are automatically fetched from the remote social networks, manipulated and transformed in the cloud on-the-fly to match your graphic design and are delivered to your users optimized and cached through a CDN. Ruby on Rails sample code is included.
This blog post shows the advantages of the WebP format over JPG and PNG and describes how you can automatically convert all your images to WebP of any quality. A dynamic-loading technique with on-the-fly image generation using jQuery is also explained. Ruby on Rails code samples are included.
This blog post describes how you can easily build a high-end, real-time photo sharing application using both PubNub's and Cloudinary's cloud-based services. Live photo sharing web application is included as well as Ruby and Javascript sample code.
This blog post introduces Cloudinary's image improvement filters and effects. With these new capabilities, you can embed better looking images in your websites and mobile apps with ease. You can also mix and match multiple improvement filters together to create "artistic" results. Ruby on Rails sample code included.
This blog post details how you can use Cloudinary to perform asynchronous background image processing in the cloud and receive web notifications when uploading and image manipulation are completed. Sample code in Ruby is included.
This blog post describes how to automatically sharpen images, blur images and blur only detected faces in photos. Image manipulation is performed seamlessly in the cloud by Cloudinary. Ruby on Rails sample integration code is included.
This blog post describes a new add-on for cloudControl, a popular European PaaS provider.
Ruby and Ruby on Rails developers can build and deploy their applications using cloudControl and use Cloudinary as an add-on for uploading images to the cloud, performing image transformation & manipulation and delivering optimized images through a fast CDN.
This blog post shows how you can use cloud-based image transformations to easily manipulate the opacity of images and how to use this technique to add watermarks to images. Ruby sample code is included.
This blog post describes how to easily generate advanced image transformations for your Ruby on Rails applications while using the CarrierWave GEM for uploading images to the cloud and assigning them to your ActiveRecord or Mongoid model. All image transformations and delivery are done in the cloud by Cloudinary.
This blog post explains how to easily add various kinds of borders to images using Cloudinary's cloud-based image transformations. It also demos some useful chained transformations for quickly achieving interesting effects. The post includes sample code in Ruby on Rails.
This blog post describes a new cloud-based API that helps you improve your website using semantic information hidden in your user uploaded images. You can use Cloudinary's API to retrieve Exif data, coordinates of detected faces, predominant colors and color histogram of your uploaded images.
Ruby sample code included.
This blog post describes a new Engine Yard add-on for a cloud-based solution that streamlines all your online image management needs with Cloudinary. You can easily upload images to the cloud, perform smart image resizing & transformations and seamlessly deliver images through a fast CDN.

The add-on provides a smooth integration with the powerful Ruby on Rails cloud-based platform of Engine Yard.
This blog post details a programmatic way to easily create image compositions, build image-based animations and generate animated GIFs. All image transformation, layering, effects and animation generation are done by Cloudinary in the cloud (no software installation required).
Dynamic URLs and Ruby sample code included.
This blog post describes Cloudinary's new asset administration API. Using this API you will be able to programatically browse through user uploaded images, find specific images, delete images, delete transformations and more. Sample code for Ruby on Rails included.
This blog post describes Attachinary, a great new attachment management library for Ruby on Rails by Milovan Zogovic. Non-intrusive integration with your model, minimal code changes. Uses Cloudinary for uploading files to the cloud, transforming images and delivering files through a fast CDN. No need to install any image manipulation software. Built-in integration with jQuery-based direct uploading from the browser.
This blog post explains how to keep people privacy in photos by automatically blurring their faces. A pixelization effect is applied on images. Together with automatic face detection, only faces in a picture are blurred as intensely as you need. Image transformations are transformed on-the-fly in the cloud. Code samples in Ruby on Rails are included.
This blog post describes how to utilize the private images and strict transformations features that are now available through Cloudinary, for easily building a stock photo site.

Uploading private images, resizing, cropping and adding watermarks, fast delivery of low-resolution samples through a CDN and authenticated download of original hi-resolution images on demand.

Ruby sample code included.
This blog post describes how to easily upload images to the cloud directly from your users' browsers, without going through your own servers in the process. The post includes a general explanation of Cloudinary's direct uploading solution, detailed integration examples and advanced tips.
Sample code for Ruby on Rails is included.
This blog post explains how to easily embed thumbnails of videos from YouTube, Vimeo, Hulu, Animoto and Dailymotion. Thumbnails can be automatically resized, cropped and transformed to match the graphic design of your website. Face detection can be used for better cropping. All thumbnails are cached and delivered through a CDN for better performance.
Ruby on Rails sample code included.
This blog post explains how to easily upload PDF documents to the cloud, automatically convert them to images and back to PDFs, generate thumbnails dynamically, extract certain pages from multi-page documents and deliver through a fast CDN. All that done in the cloud without any software installation.
Ruby on Rails sample code included.
This blog post talks about Cloudinary's Heroku add-on for cloud-based image management.
Easy integration with Heroku's Ruby on Rails stack included.
This blog post explains how in addition to safely storing uploaded images in a cloud based storage, uploaded images can be automatically backed up to a safer location, where no casual API calls can penetrate. Multiple revisions are kept for each uploaded resource for even greater robustness.
Ruby sample code included.
This blog post describes how to easily apply effects and filters on images using Cloudinary's cloud-based API: hue, saturation, brightness, oil paint, sepia and more. The post also explains how to apply multiple chained image transformations simply by modifying an image URL.
Ruby sample code included.
This blog post describes how to easily rotate images in any angle and how to automatically rotate images left or right if the desired aspect ratio doesn't match the original image. Image rotations can be mixed with any other Cloudinary's image transformations. The results are cached and delivered through a fast CDN.
Ruby on Rails sample code included.
This blog post describes how to easily display placeholder images when accessing remote images that might not exist, such as Facebook & Twitter profile picture. You can also automatically transform the placeholder images to any required size and format.
In addition, this post explains how to use Cloudinary to easily embed Gravatar images while dynamically resizing them, applying face detection for better thumbnail generation and fast cached delivery through a CDN.
Ruby on Rails sample code included.
This blog post describes how to easily add watermarks and textual credits to your own images by using Cloudinary's new Image overlay feature. This same method can be used to embed custom badges and medals to your users’ profile pictures, merge arbitrary text to your website’s selected images, and much more.
The post includes some Ruby on Rails code samples.
This blog post describes how to use Cloudinary to automatically deliver all static images of your Ruby on Rails web application through a CDN. Allowing you to improve site's performance without any code changes.

It also explains how to perform image transformations using your CSS or Sass files, e.g., for displaying Responsive Images for different devices.
We've just published a post on our fresh new blog discussing image upload methods in Ruby on Rails. Specifically explaining the advantages of the CarrierWave GEM. The post also demonstrates how to integrate CarrierWave with Cloudinary for uploading images to the cloud, using smart image resizing, cropping, conversion and optimization and delivery through a fast CDN.