Implementing Railo Effectively As A Developer
By: Pete Freitag
One example that I've been meaning to post is how to get Image Metadata using the Exchangeable Image File Format or EXIF a using ColdFusion 8.
It's actually quite simple, to get a list of all the EXIF tags simply use the ImageGetExifMetaData function.
Here's a quick example:
<cfimage action="read" source="#ExpandPath("lobster.jpg")#" name="img">
<cfset exif = ImageGetEXIFMetaData(img)>
<cfdump var="#exif#">
Here's a screen shot of a CFDUMP of the EXIF Image Metadata.
As you can see some of the useful keys are Model which gives you the digital camera model (Canon EOS DIGITAL REBEL XTi in this example), Make gives you the digital camera brand (Canon), Exposure Time gives you the exposure time (1/60 sec).
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*Originally published at Pete Freitag's Homepage
About The Author
Pete Freitag (http://www.petefreitag.com/) is a software engineer, and web developer located in central new york. Pete specializes in the HTTP protocol, web services, xml, java, and coldfusion. In 2003 Pete published the ColdFusion MX Developers Cookbook with SAMs Publishing.Pete owns a Firm called Foundeo (http://foundeo.com/) that specializes in Web Consulting, and Products for Web Developers.