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RAW mode, a feature of virtually all digital SLR cameras and an increasing number of high-end point-and-shoot cameras, enables your camera to capture all of the image data in your photographs in full quality without distortion caused by JPEG data compression. RAW files enable you to repair white balance and color temperature problems, solve exposure problems, and adjust color intensity and other settings far better than you can with JPEG files. Unfortunately, you must use software that supports RAW files to optimize your picture and export it to a format you can use for other purposes, such as JPEG or TIFF.
Thankfully, you don't need to spend a fortune on software to edit RAW images. In this article, we'll put three popular solutions to the test:
Professional Digital Photo and Google Picasa are free, while Adobe Photoshop Elements v8 runs around $80-100. Can you get by with a freebie, or should you cough up some bucks? To answer this question, we turned all three of our contenders loose on discolored, underexposed and overexposed Canon RAW (.CR2) photos taken with a Canon Digital Rebel XTi camera.
Google Picasa is easy to download and uses the same interface for editing RAW images as for editing other supported image types (JPEG, TIFF, and so on). Picasa supports most digital camera RAW codecs (see this reference) and is updated frequently as new digital camera RAW file types are introduced.
RAW images are displayed in Picasa's image library window the same way as JPEG images. To determine the image type, click the image, and the file extension, size, and other basic properties are shown in the blue bar between the image browser and the action buttons.
As soon as Picasa locates photos, including RAW images, it automatically applies fixes to those photos. This is very handy if you don't want to worry about making a lot of changes yourself, but if you don't agree with Picasa's changes, it can be frustrating, since you can't undo automatic fixes.
To make manual changes, double-click the photo in the Picasa image library window. Picasa uses three tabs in its editing space. The Basic Fixes tab opens by default. For a quick automatic repair, click I'm Feeling Lucky. Sometimes you're lucky, but in this example, we've traded dark poor color for lighter poor color. Thankfully, you can undo changes made on this tab by clicking the Undo button
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