Cloudinary Blog

Blog posts of 'Ruby-on-Rails' tag
Optimize your JPEG images without compromising quality

Image optimization is an important step to reducing page load times, improving user experience and reducing bandwidth costs. When using the JPEG image format, which is best used for photos, the most common optimization is controlling the JPEG quality level.

By lowering JPEG quality, say to 90%, 80% or even 50%, you'll get much smaller JPEG files. But will image quality be good enough? JPEG optimization is tricky because if quality is too low, you'll get blurry images, pixelation and visible compression artifacts; if it's too high, images will look good but take too long to load.

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Overlay text on image, pixel perfect with no CSS/HTML

Our customers frequently ask us if we can help them apply dynamic text overlays over images. While a common approach is to add text elements in your pages using HTML elements, CSS or native mobile UI controls, in many cases it's preferable to create images with text layers already included. It makes it simpler to display rich content on different media channels and devices, while ensuring a pixel-perfect result as your graphic designer envisioned.

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Image moderation made easy using cloud-based UI & API

Many websites and mobile apps today allow their visitors to share their own photos. Users upload their profile images to dating sites, photos of their personal belongings to second hand market websites and real estate billboards. Users share their personal photos on social networks, and upload images to their favorite e-commerce websites, showcasing and reviewing their latest purchases.

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Beyond face detection - smart cropping with Imagga & Cloudinary

It’s a common challenge in many mobile and web applications: how do you allow users to upload their own images, while automatically adapting these images to a fixed graphic design?

A classic example is a user uploading a profile picture, but instead of providing a headshot (which is what we really need from them), they upload a picture of their entire body with additional objects in the background. Obviously this image will need to be cropped to the size of the profile picture, while focusing on the user’s face.

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Online website screenshots with URL2PNG and Cloudinary
Thumbnails of website screenshots are a common visual design element. Search engines, such as Google, display webpage screenshots in their search results. Social news sites, such as DZone, embed screenshot thumbnails of shared pages. Bloggers and technology news sites embed screenshots of company websites and online services they discuss in their posts. Development companies embed screenshots of websites they helped develop.
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Image cloud storage, auto-migrate images to the cloud
Website developers and administrators today tend to find themselves managing quite a few files, images and other media assets. Whether you upload content to your web application yourself, allow your users to upload files or have files imported from content partners, you'll need to handle the upload process, storage, and possibly thumbnail creation required to showcase your assets online.
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Secure image manipulation with signed URLs
Modern web sites and mobile applications frequently showcase a rich set of images with various sizes and dimensions. Such services can even have their graphics, image resolutions and overall look & feel vary between different devices (desktop, mobile, etc.), and may change dramatically with constant upgrades.
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Using WebP file format selectively to boost site speed
One of the hardest optimization goals when showing images to your website (and mobile application's) visitors, is to minimize the image file size while maintaining high enough display quality.
 
Smaller image file sizes directly translate to faster load times, reduced bandwidth costs and improved user browsing experience. But small file sizes directly translate to lower image quality and may harm visitor satisfaction. Maintaining just the right balance is both crucial and hard.
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Embed Instagram, Google+ profile pictures in your site
Many modern web and mobile applications include integral social aspects as parts of their online solution. 
 
Users can sign-in to these services and be identified by their chosen social identity. This is made quite straightforward by leveraging single sign-on services such as Facebook Connect, Twitter, Google+ and others. After signing in, activities in the service and user generated content can be accompanied with the real name of the users as well as their profile pictures.
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