One thing many Linux fanboys and fangirls don't know about is that Instagram actually runs on Ubuntu Linux 11.04 ("Natty Narwhal") thus further reinforcing the soaring popularity of the open-source desktop. That being said, your favorite photos don't have to be limited to one single platform for you to flaunt those cool retro effects. Many different applications and services have cropped up that let you add those same effects without the need of Instagram. The following are ways in which you can use the same features on your Linux desktop:
Xnretro is a cross-platform tool that lets you add retro effects to your photos. The app, which works on Android, Windows, Mac, and even Linux, has as many as 20 color effects. What makes this app even cooler is that it has light effects like bokeh thus allowing you to create beautiful pictures. Once installed, the usage of this app is pretty simple. All you have to do is add your photo and select from the different effects like retro, vignette, and frame. If you are a pro user, you can fine-tune the settings further by changing the various output settings.
Another great app that you might want to try is Pixlr Express. Though you won't find this app working as a native software, you will, instead, be surprised how good it is once you start using it. Not only does this app bring Instagram-like photo editing to your web browser, it also brings some of the best photography tools for you to use on any of your snaps. Like other web apps, Pixlr installs directly to your Google Chrome browser thus allowing you to add it to your desktop like any other normal app. Once installed, you'll be able to import your photos from your computer, from your webcam, or from a URL. These photos can then be fixed for redeye, vibrance, color, contrast, and blur. In the effects section, you can add various popular retro-style effects to your snaps thus making them look really cool. Once you're done, you can export those photos back to your computer so that you can access them from anywhere.
Written by: Abhishek, a regular TechSource contributor and a long-time FOSS advocate.