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How To Process Camera Raw Without Paying for Adobe Photoshop

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You might think that you need expensive software to take advantage of Camera RAW—something like Photoshop or the more modestly priced Lightroom. Fortunately there is freeware that can help you achieve professional results without professional costs.

Shooting in JPG can be very limiting, so Camera RAW formats can give you superior images, as long as you can process (or develop) your images. Adobe has great tools for developing camera RAW, but, as we know, Adobe products are expensive and sometimes cost prohibitive. Read on to see a great Freeware option, with a simple How-To describing how to properly use it.

Refreshing on Camera RAW

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Camera RAW, which is more of a collection of proprietary filetypes than a single filetype, can be thought of as a digital negative. How-To Geek has already done a more thorough explanation of Camera RAW earlier this month, if you care to learn more. However, the thing to keep in mind is that RAW is not simply an image file, but rather RAW image data that needs processing. This is a good thing—because shooting in JPG makes decisions for you that can’t be changed. So that’s what we’re setting out to do… make those changes in our RAW file with free software.

Raw Therapee is a Freeware RAW Editor

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The most current version is of Raw Therapee is 2.4.1, and even though it is several years old, it is still an excellent solution for the budget-minded photographer. A newer version is still in the works, as of January 2011, with source code available for compiling unstable versions for Windows, OS X, and Linux.

Unless you are very adventurous, you’ll want to download the older version and simply keep an eye on http://www.rawtherapee.com for version 3.0.

Processing Camera RAW Images

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Raw Therapee looks like this upon opening. In order to begin processing our RAW photographs, we’ll have to navigate to find them, using the file tree on the bottom left.

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This is simple enough. Find this area on the bottom left and navigate to where which drive your RAW photographs are kept on. Double click your folder to bring up your images in the strip below.

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All images in the folder will display in a strip, giving you the ability to browse for the file you want to develop.

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Right clicking your image will give you this contextual menu. Click “open” to begin processing your RAW file.

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Your image loads in the center preview window. Let’s take a quick tour around this window to see what Raw Therapee offers us.

Locating the Tools of Raw Therapee

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Scale: Zoom into your image here. Because the Detail area to the right looks very similar, you’ll want to look here to zoom in and out of your image.

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Histogram: A visual representation of the value distribution of your currently loaded image. This histogram corresponds to the earlier image of the “Private Property” sign. The bottom axis corresponds to a value scale, with the leftmost part representing 100% black, and the rightmost part representing 100% white. The vertical axis represents the concentration of the corresponding value. What we can see from this, is that this image is mostly full off gray, as the RGB values are all similar, and are also concentrated into the same general area, a small distance away from pure white. Looking at the loaded image, we can see that is a fair representation of that image.

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Postprocessing Profiles: Editing a RAW photograph can be difficult work. Once you’ve spent the time meticulously adjusting the image temperature and exposure, you’ll want to save your settings here and apply them to every picture you took under similar conditions.

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RAW Processing Tools: This is the main event, with almost all of your important tools buried here. This area, located on the far right of the application, will allow you to fine tune your Camera RAW photographs with ease. Let’s dive in and tweak that photo.

Setting White Balance, AKA Image Temperature

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Cameras have to be set to capture color based on the quality of light that is hitting your lens, and this setting is called White Balance. Some lights are cool, others are warm, and this is sensibly called Temperature. You can learn more about it in other How-To Geek Articles, or simply take play with your settings until you find the temperature setting appropriate for the light you shot your images in.

Most likely your camera will choose an “Auto” white balance if you are shooting RAW. Let’s adjust it to improve our image quality.

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Locate the “Color” tab, temporarily ignoring “Exposure.”

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A temperature of 5000K is what is considered “Natural Daylight.” As these shots were taken outdoors, 5000 is a decent setting to start with. Less than 5000 will be cooler, over will be warmer. Adjust this according to the environment you shot your photographs in.

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Our image is a normal hue again, although it can be adjusted to lean a little cooler, considering the content of the image.

Adjusting Exposure in Raw Therapee

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Return to your “Exposure” Tab in your right hand panel.

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Adjust your values here as you see fit—each one will affect your image in drastically different ways.

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Apart from looking at your image as you adjust it, checking your Histogram as you adjust can ensure that you get the richest possible results. The first histogram is an “enhanced” version of this image, while the second and third are poor versions. The second is too dark, the third too light. Your goal is usually to ensure good detail throughout your image, while giving yourself good value range through lights and darks.

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While every part of this process is subjective, you are given the tools to develop your image for the best result possible. Achieving detail in both highlight and shadow areas is a good goal, although you may choose to stylize your image by making either more harsh.

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If you’re not sick of tweaking your highlights and darks, there are additional tools for even more control over highlights and shadows. You’ll find them underneath “Shadows/Highlights” on your toolbar on the right. They are fairly straightforward, and will give you good results if you use them after first tweaking your exposure. “Luminance Curve” is also available for an even further level of tweaking.

If you are satisfied with your image after any level of adjustment, you may stop. It is possible to overdo your tweaks to images.

Complete Your Image Processing

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When you are pleased with your image and feel it is complete, you can always use the “Save As” button on the right to save your results as a JPG or PNG to use in other programs. However, let’s apply our hard work to our image before closing up shop.

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You’ll need to find the gear icon above to find the processing panel. Click it to switch to the processing queue view.

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Click “Start Processing” to render your image. When it is finished, you won’t get any weird errors about unprocessed images, and you can close the program normally. You will still be able to re-adjust your image from your original RAW settings, or even use a new profile for a whole new look.


Have questions or comments concerning Graphics, Photos, Filetypes, or Photoshop? Send your questions to ericgoodnight@howtogeek.com, and they may be featured in a future How-To Geek Graphics article.

Image Credit: Negative by ollycoffey, available under Creative Commons. All Other Images copyright the author, Eric Z Goodnight and Brad Goodnight.

Eric Z Goodnight is an Illustrator and Graphics Geek who hopes to make Photoshop more accessible to How-To Geek readers. When he’s not headbanging to heavy metal or geeking out over manga, he’s often off screen printing T-Shirts.

  • Published 01/24/11

Comments (15)

  1. Hatryst

    Almost all DSLRs come with a CD/DVD that contains the software for RAW processing. So the software featured here could be used as an alternative, in case you lose your CD, or when you’re away from your own PC, which has the RAW processor ;)

    Thanks !!

  2. Nav

    Its little confusing in my cs2….. wanna try in cs5

  3. Roger Provins

    Raw is just the English word it is not an an acronym so should not be capitalised. Just raw not RAW.

  4. Eric Z Goodnight

    @Roger: While this is a good point, I see it RAW as often as raw or Raw, including on my Digital SLR. I don’t know that there is necessarily any authority on the matter.

  5. Barbara

    I just downloaded this and used it on two photos. I really liked this little program. I can see me using this often. Thank you!

  6. Joshua

    @Roger & @Eric: You both are right, but we cannot forget that as well as it is a word (not an acronym), here it is used as an extention, and often times file extentions are in capital letters (I don’t know if there is an rule about it)…

    Anyways “Peccata minuta”, I think the program looks all right.

  7. Eric Z Goodnight

    @Joshua: Right, I think the capitalization comes from the idea that it is a filetype. Honestly, it’s all about the same to me, it really is a minor thing. But it clearly is not an acronym like JPG, GIF, PNG, etc.

  8. dave

    I used it on my win7 system with great success. too bad there isn’t a Mac version.

  9. Eric Z Goodnight

    @dave: If you visit the page, the source code is available and can be compiled for Linux and Mac OS X.

  10. Rich

    For those who use MS-Windows, Helicon Filter 4.93.2 is capable of processing RAW/raw. And it too is free to download and use.

    http://www.heliconsoft.com/heliconfilter.html

    See bottom of page.

  11. Thomas Brown

    I’ve also learned that Picasa can handle many RAW formats.

  12. Andrei

    Well you could use a torrent and don’t pay for adobe :)

  13. Me

    The best RAW converters are usually the Camera manufacturer’s software – like Canon’s DPP and Nikon’s View NX – both of which are free. Using anything else (including PS/LR) will almost always give you lower quality

  14. Cornelius Scarabeus

    Also check out Scarab Darkroom! Currently Windows only and beta, but very stable.

  15. zorg

    Yay!!! Raw Therapee 3.0 is now stable!!

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