Accessing JPEG EXIF rotation data in JavaScript on the client side
I'd like to rotate photos based on their original rotation, as set by the camera in JPEG EXIF image data. The trick is that all this should happen in the browser, using JavaScript and <canvas>. How could JavaScript access JPEG, a local file API object, local <img> or remote <img>, EXIF data to read the rotation information? Server-side answers are not OK; I am looking for a client-side solution.
Nihilogic : Javascript EXIF Reader
This is a test of the Javascript EXIF library posted here. Click the images to see it in action. The first image tests reading single tags, while the other two simply show all available data. The binary file access happens in binaryajax.js and the EXIF data reading happens in exif.js. Also check out the jQuery plugin, if you're into that sort of thing!
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