IMG·2·JSON — an image metadata extraction JSON web service

IMG·2·JSON is my first attempt at a Google AppEngine application, and my first go at using Python.

I threw the app together in about an hours work, and while it does a pretty simple job, it does it using the speed of Google’s infrastructure.

The application is designed to return a JavaScript Object Notation (JSON) string providing metadata about an image URL that has been passed as a querystring parameter. The metadata extracted can be as simple as providing information about the image’s width, height, file size, and mimetype, but it also extracts EXIF metadata.

EXIF metadata contains a variety of information and is commonly used in digital cameras to stamp the image with information like the date the photo was taken, the camera model and manufacturer, camera orientation, and even GPS coordinates.

Go try the live demo on the IMG·2·JSON home page or find out more information on how to use the service


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